In my opinion till now bitcoin is the base currency for all altcoins I agree somehow with your statement if bitcoin crashes so it would affect most of the altcoins as well. But I see no reason of bitcoin crashing, if bitcoin stable I noticed altcoin rises most of the time in that period. I think without bitcoin altcoin will have no future too as I analyse.
I would prefer trusted, tested, secured and well known coin bitcoin. In my opinion bitcoin would be the better investment as compare to bitcoin cash. We have trust on bitcoin since 2009. In my opinion bitcoin can give us much better profit as compare to bitcoin cash. Its my personal opinion.
We can't control everyone, everyone has different-different likes and dislikes. If somebody wants to use his btc for gambling they can use because there is no restrictions. People give priority to btc over fiat because in my opinion bitcoin ROI is very high in the recent time & on the other hand btc moves aggressively I think that's the reason why people prefer btc rather than fiat.
Honestly speaking bounties are more promising than airdrops. I am doing almost 50 bounties at the moment. On the other hand airdrop is a free money everyone loves free money but it's very risky too because some airdrops are made only to steal your wallet information always careful while putting your wallet details. For tension free earning participate in bounties rather than airdrops.
Learn some trading method, learn chart analysis, learn support and resistance of market these things are important to trade and certainly helps you to make a good trader. Apart from this you can do some bounties for bounties you don't need to invest & that would also helps you to earn some coins & you can sell these coins for btc.
There are many factors that decide the fate of the specific altcoin that will survive for long-term or not. I agree with your statement that Litecoin and Dogecoin will continue to survive for long here but I have some other good altcoins option that can also be proved long term coins: Waves, Stratis, DeepOnion, RDD, Ethereum, Dash & Xmr. Anyone can research about these coins & consider it for long run.
It's not a big thing I think its a golden opportunity to buy more bitcoin when bitcoin decreases. Or you can consider to buy some altcoins that would also be a good choice. Those who are holding bitcoin from long they knows it will bounce back again. Patience is the key for bitcoin holders even I am not worried for bitcoin I am a true believer of btc. I am not afraid if bitcoin value decreases.
Btc is always worth to hold, on the other hand BCC is still new in the market it has a long way to go. Even some people made good profit from BCC in the recent rise. Bitcoin drop is just a market correction. Now is the best time to buy bitcoin again its a good opportunity to make some good money again.
Yes I agree nowadays Btc is unstoppable its too costly now. Definitely it make sense to invest in Altcoins and it's worth off to invest in Altcoins because that we can easily afford to invest. We have a lots of options in altcoins. but I prefer these five altcoins: Dash, Xrp, Xmr, DeepOnion & PowerLedger, One should not be impatient to sell his/her coins instantly he/she must have patience to hold the coins to get good profit from altcoins.