Just because someone is using Bitcoin, any other crypto currency, for corruption does not make it reason for corruption. A person or entity is less interested in the mean by which they commit corruption. to put it in better words, money launderer or corrupt entities are not attached to one specific tool of value storage. They dont care if they are using bitcoin or monero, ether, diamond, gold. What these guys care about is how stealthy it is, how flexible it is.
One popular reason for restraining people from using cash transaction was it increase black money. Thus people should go via banking system. These are easy to track. Now there are numerous banks, I mean international bank which were caught red handed doing money laundering. In fact these banks and financial institutes are the kingpin of corruption.
Stop killing messanger(bitcoin).

Current price is somewhre around 5330ish . If you want to make quick buck then try purchasing small amounts gradually. Keep close eye on the market trends. The fluctuation showing further downward trend then stop for some time, check how much time does it take to show upward movement. When movement of market is upward with more than 3 percent then you grab more coins. Remember if you have 100 bucks then either you could wait till lowest price point you desired most. because you may not know which will be the lowest point of current cycle (quater) so, decide a target. Make sure that target is realistic. Next check the market, you could put your bet/deal on exchange for mentioned price. Once that point is reached you will get better results.
You could invest gradual amount like first start with 20 percent each then proceed accordingly.

Absolute passive income like rent a house from the bitcoin or alt coins is not possible. Those sites which assures the monthly income or for that matter daily return on your investment are scams.
One big example of such cloud mining scams is bitcoingrowthfund and gainbitcoin. Stay away from them. Somewhat real deal cloud mining sites have return so low that you may want to keep your money somewhere else.
Ongoing passive income is not something coins are designed for. These coins are there to put in use, many of them have actual use case. They don't need to be treated as commodity.

This is a dangerous advise one could share with other. If one really want to invest their money for great return then bitcoin is the best place to go. The alt-currencies have not succeeded as greatly as bitcoin. Few currencies like ether have shown real progress on their own. Even they got backing from big investors, corporates as well. Most of alt-currencies go vanishing. Some gets  blown by the internal conflicts. One example is ripple lost its mojo after one of big holder of ripple announced donating big, big chunk to the charity. Ripple is still not recovered from that blow. Still it one top five currency.
So no matter how small amount you have go for bitcoin. You would definitely be on profitable side after long time (at least year or two).

Intra day trading is like playing with fire in any commodity market, be it stock market, be it forex, be alt-coin. Unless you have insider information, trading with 100% is hard. Here to begin with, why bother on trading the bitcoin on regular basis. Just buy and HODL them. You could only check the market price if you really need the money. Otherwise trading must be kept to those who have better understanding of market, what is happening and what is bound to happen in next few quarter. Like current prices might be pumping up due to bitcoin fork in sight. Thus some who has known this would be busy buying more coins and ready for making that big splash for himself.

Investment and saving are two essentially separate things and they are not alternative to each other. Saving is something which is useful when a requirement or necessity arises suddenly. At this point you need immediate amount of money. Here availability is the key. Investment on the other hand is long term or short term plan which locks down the investment for certain amount of time and after its maturity time yields the profit. Essentially increases the wealth. Thus saving is a necessity  where is investment is wise decision or strategy to increase wealth.

NO, NO, definitely no. Bitcoin has a long distance to cover when it comes to being accepted from all countries. Bitcoin community is powerful, that is correct. Despite that power they are still unable to fix current situation of segwit, softfork-hard fork.
The reason one should buy bitcoin is the value appreciation happening with bitcoin is amazing. No other instrument of investment has ability to return such kind of ROI. Bitcoin is powerful when sending money over wire to different countries. Irrespective of current price being all time high, bitcoin has been on bull run for last two year n there is stopping of it for fore coming future either.
Thus buy bitcoin with whatever amount you can invest.

Yes, this is a profound and proven point when it comes to the bitcoin. Buy, buy and HODL for long time. Those who have ability to move the market can benefit from pump and dump. However people who have minor stakes compared to the big players, don't need a involve in current market situation. Instead of buying or selling when markets swings quickly, one should keep remain tranquil and keep going on. If you have purchased coins previously and not in mood of buying more then chill out. If you are regular investor of bitcoin then just keep on buying regular installments. Panic selling is not going help irrespective of your selling on high point or low point. If you sell on current ATH then Sooner that ATH will be crossed shortly and new ATH will be set.

Bitcoin growth has not been steady but exponential and more dynamic. Steady growth is where you could find a link in ups and downs with specific reason happened at those times. This is not the case with bitcoin, prices were rising even after china initially restricted exchanges for considerable amount of time. Prices rose or may i say skyrocketed with there was anticipation of bitcoin getting accepted by American SEC. Remember bitcoin ETF hype, even after the bitcoin ETF was rejected prices kept on rising. In fact this year saw one big spike to 5k and suddenly prices were at 35k and now there nearly touched 6k . All this withing span of 60 days.
Strongest currency is a currency which has highest acceptance rate all over the world. Bitcoin is yet not there.

That is why a hardware wallet would go long way. Move the coins in many hardware wallets as per preference and then store these wallets in a secure vault. There are many secure vaults available which will store the coins safely.
In my opinion, really smart will prefer anonymity and store the coins in hd wallet and remain low profile. Without bragging about it, like hiding in plain sight. This works more effectively than being hyper secretive.
About the coming out of shadows, it is very dangerous for the person to do so. Because it is put that persons life in grave danger.

Countries which have infrastructure to implement the online transaction or cashless society will try to follow the suit. Going completely online without cash is pretty dangerous idea. The reasons are pretty straight forward:
1. Many countries don't have complete network coverage in its all states. Thus if someone is stuck in that no-internet zone imagine the situation.
2. Security of online transaction and the smartness, awareness needed from customers is still a concern. Customers, people should elevate their awareness about the online transaction, phishing attempts etc.
3. iF a country levies Charges on online transaction  then people will be more reluctant to go online.

The best scenario would where customers choose what type of transaction is more suitable for them and go with it. Online transactions are more easy to do  compared to cashone. It is difficult to see cashless society so soon.

Many people on this planet earth are not familiar with crypto currencies. In fact many from countries with internet access and fairly net savvy are still unaware of cryptos in general. Many people are unware of concepts of currency in first place.    Except students of economics very few understand what fiat currency is. Slowly but steadily people from advanced countries are using the bitcoin or crypto currency. Countries like japan who are actively using bitcoin and showing signs of successful adoption.
The global level adoption of crypto will take its time. This is beginning and once there is enough momentum in adoption then there is less chance of resistance.

There are some who are area in world who have local currency than national currency. Creating currency or token by each state is not good idea because currrency that is common currency is what keeps a country as a country. If each state gets different token then it is added load on the economy and danger to the society. Who is going to keep tab on these tokens from each state? Who will decide worth of token? with different or independent currency or token wouldn't it enable process of separatist movement?
It would definitely start a separatist movement, the states who have token value greater will try to keep others from entering their state.

Correct. If inflation needs to be control then there needs to be some kind of fiscal policy, monetary policy etc. Implementing these kind of policies helps in keeping tAB on inflation. However main problem is when a country accepts loan based development model then debt ridden economy is bound to get into trouble. Thus on macro level staying away from debt-oriented schemes as much as possible will definitely help.
It is important to cure the cause of the problem not the symptoms of problem.

People have already stopped considering china when talking about bitcoin and bitcoins movement. Effect of china or for that matter any other country on bitcoin's performance has crossed borders of any country. Once upon a time china exchanges has that power, now no one country has it. This year kick started bitcoins progress free from any country's influence. I mean bitcoin price gets positive effect whenever a country adopts or shows good signs about bitcoin. And at same time any negative sign from country shows some dip in price however that dip is covered up so quickly that new all time high is scaled in that process.

Trading is kind of active way of trying to get more money with existing money. At the same time putting money in bitcoin ( or for that matter in other alt currencies ) and waiting for prise hike is passive. That is irrespective of ups and down in market passive investment will not touch/move the asset at all. Once expected rise in price level is reached one think about liquidation in full or in part. At trading decisions are made on what is happening and what may happen.
With trading risk is high at same time risk with the passive is somewhat less.

ETH is good and more affordable than bitcoin. current price of bitcoin which is around $5735 is out of reach for many. Those who less money for investment may consider eth. However it is better to purchase gradual, fractional amount of bitcoin than going for eth from profit perspective. The way bitcoin is going on is just spectacular. So I would suggest some satoshi as your budget allows. Going for eth is also beneficial, just not much beneficial as bitcoin.

My two cents...  I think scamming is art of seduction misused. Remember scamming is a art and science in itself. Considering OP's point that people would rather let someone starve to death than helping needy. The scammer manipulates very same people to give their money for easy money in return.  Committing a crime when someone is in dire need of money like family member is in life or death situation is different scenario. However when person  aspires lavish life without working honestly about it then that person starts scamming other people.
Remember scamming people is to spot the weakness of people, taking advantages of weakness of other people. All this takes a showmanship, confidence, ability to remain steady in the event of someone trying to call your bluff.

If Japan is doing it successfully so far then there must be a way to replicate the same in other countries as well. As far as adoption is concerned if buyers are interested then sellers will also try their hand on bitcoin payment. I mean What is one of biggest hurdle with bitcoin -> is it time to confirm the transaction or is it security about getting money back like we get with credit card or debit card purchase. As things are working in Japan then these fellas must have thought about above issues. There must be a work around for security on money back as well.
Major part in these kind of situation is from the govt. Because it is the govt which will legalize the use of certain payment system. If govt allows the vendors, sellers to use the bitcoin then you would increase in bitcoin adoption for actual purchase of goods and services.

You might have confusion about the HODL and trade. You mentioned storing or saving bitcoin for long tiem and it has high risk. Thus you are suggesting trading. trading is next level high risk activity one could do with bitcoin. If and only if you know how market is moving, what is happening in global market level and based on the analysis of these kind of things you deduce what might happen in future. And then you place your bets on bitcoin. This is trading. Few things are important to understand when it comes to get benefit from the bitcoin.
1. If you have less money for investment purpose, buy some satoshis or bitcoins as per situation and store it safe.
2. Repeat step 1 regularly
3. If you understand or able to predict what may happen in market then put some coins in trading
4. If step 3 is not feasible then step 2 is for you.
5. Keep your coins in your hardware wallet for long long time. You will be amazed after five to ten years realizing your saving value increased by bitcoin.