you can't really compare any of the altcoins against bitcoin, that is a very unfair battle that they will always fail in because bitcoin is the only one that is actually used in the real world and is really decentralized with a good supply design. others are either very poor copies of bitcoin (including LTC) or other form of copies of bitcoin (like ETH) that changed too much and ended up with so many bigger problems like their unlimited supply and out of hand blockchain size that nobody can download anymore.

bitcoin has always had a certain roller coaster trend and will continue having that because nothing about the market has changed. in this special type of trend price keeps rising and ends up with a couple of months of big jumps and a big bubble before such "big crashes" happen, and each cycle is by setting a much higher ATH than the previous time.
so your $25k and $30k here doesn't make any sense unless you are calling the small 10% to 20% corrections a "deep crash" which would also be wrong.

i'd say the goal was to gain some fame online and in that she was very successful. and that can be the explanation of why she did the things she did in those videos. otherwise i honestly found the whole thing very strange and unrealistic in many parts.

actually i  have only seen people who are in this market and trading cryptocurrencies to make money who are the main people who think like this!
otherwise when you look elsewhere in the real world and talk to different industries you can see that they are not even aware of the blockchain technology and those who are, consider it to be a waste of resources.

i am always interested in seeing an actual decentralized social media based on blockchain technology and so far i have seen at least a dozen of them just as vague as OP who just use certain keywords in their advertisement of the project and so far checking each of them none had anything remotely interesting. that is why i am asking these questions which i believe are key.
most of these startups are created as a money grab project that is why they fail!

now when you say "based on blockchain" what exactly does that mean? because it is very unclear right now.

will it be "decentralized"? then how would that work exactly? would creating an account be exactly like creating a new wallet and can i for instance create hundreds of addresses (accounts) if i wanted to (and if not how is that decentralized)? who is going to be running full nodes on this decentralized network storing such a blockchain that can grow to gigantic sizes in a very short time?

if it is not decentralized and if the blockchain is going to be stored on a server like what Facebook already does then why are you using blockchain in first place?

no because first of all those that create an ICO aren't looking for success of their project. there is no project really. their only goal is to make a lot of money quickly by raising it from people who are buying a virtual number on their computers that has no other value other than on exchanges where they dump.
secondly because we don't have any advisors in this space. we only have newbies and experts. experts don't waste their time on ICO projects with that goal and newbies who do, are doing it to scam others.

right now we are mostly in a denial phase where some people still can't accept the fact that bitcoin has entered the bull market and they are uncertain about what they are going to do next. meanwhile whales have started another accumulation phase ever since we had the big drop down after reaching $13k+ levels.
as for $1 million, there is nothing exaggerated about it. basically it is like the $20k price prediction that people found exaggerated when price was at $600 a couple of years ago!

to address your main question (apart from that obvious scam site you used) i have to say with every design you get certain advantages and have certain disadvantages. you can never find anything in this world that is ONLY advantages and has no downsides! that can only happen in an imaginary perfect world.
so in case of bitcoin we are comparing it with the old payment systems that have charge back. with them there are millions of scams happening every day and merchants are experiencing a lot of loss because of them. if you explore a little bit of the complains that the merchants are posting online about things like PayPal, credit cards,... you can see how bad having a "charge back" is. you don't see it because you are only looking at it from the perspective of someone who uses them and may need to do a charge back. not from someone who is receiving it and is scammed because others did it!

the identity of Satoshi Nakamoto on its own doesn't matter at all. it is always going to remain as a symbol and the highest level anonymity that you can reach by using bitcoin.
the only important matter is up to us because we have to prevent scammers such as Craig Wright from stealing that identity and abusing it to scam people. and also prevent smaller scammers like McAfee to abuse it to gain popularity and basically do the same thing in a smaller scale.

the coins don't suddenly become shitcoins and they can't turn that around. when something is useless and is considered a shitcoin it is a shitcoin and it will die guaranteed. when you see they are starting it with a fund raising with any name such as ICO, IEO, STO,... or when you see the price of it dump immediately, or when you see the project is exact copy of hundreds of other projects that came before it and a lot of other things, they are all indicators and warning signs telling you that it is a shitcoin.
the fact that some people still decide to put their money into something like that even though there are a lot of red tapes to see, is their own naivete.

i wouldn't call that lack of patience because it is more like lack of understanding and plans.

the problem with people who panic sell bitcoin is that they had no plans before they bought, they instead had dreams and illusions which they wanted to come true (something along the lines of getting rich over night) and as soon as they don't see those dreams any closer they start panicking and acting irrationally.
and since they have no experience with the market and have no understanding of what bitcoin is to know its potential, they can not make good decisions and end up panic selling.

you see, patience doens't come naturally. asking for patience from these people is like asking to have blind faith in something they don't even see.

hah he is just advertising his business and trying to say in other words "come use our services and pay us money". predictions like these are of little value coming from these types of people. they just assess the market's attitude and make a statement that gives them the most attention and then will be advertised all over news sites for free. and $100k is one of the most  common guesses among everyone! you don't have to be an expert to make such guesses, you just have to take a look at bitcoin history and its bull runs to know that.

for the past couple of weeks someone started something about bitcoin rise being because of Libra and since for a year certain people were desperate for any reason to justify a rise that weren't coming (in 2018) they are now easily convinced that it must be true. which is why we see it repeated like a parrot now. it is like ETF news all over again but since price was correction at the time, it never stuck.

- that is barely a "technical" difference. it is instead a flaw that BCash introduced in their altcoin. and their chain realistically has blocks that are 1/100 of bitcoin block size since bitcoin currently has blocks that are around 1.2 MB while BCH has blocks that are around 0.01 MB
- wrong, it was created by a small number of people who wanted to take over bitcoin and centralize it

actually what you have been following has been the "altcoin market cap bloat" not bitcoin dominance otherwise you would have known that bitcoin dominance is more than 95%. but when you look at the bloat of the total market cap that is caused by altcoins and decide to call that "dominance" then that is a different story.
and it has been decreasing because a lot of altcoins are reaching their end of line and dying. so as they get dumped and disappaer their market cap disappears with them and the bloat shrinks hence increasing that percentage you were looking at.

despite what you think bitcoin is not far far ahead because of it being first, it is ahead because it is an excellent decentralized currency that is doing exactly that it was meant to do. not to mention that bitcoin wasn't even the first cryptocurrency! there were some other projects that came before bitcoin which didn't even reach production and usage let alone grow because they were flawed.

besides Satoshi would have never created a coin like ethereum because he had a vision and certain principles that ethereum does not have. principles such as decentralization and deflationary currency which ETH with its huge premine and ICO and unlimited supply and roll backed blockchain can never have.

in fact i am almost certain that if a coin like ETH were created before bitcoin, it would have died within 2-3 months and would have never even reached a value to want to grow. the fact that it has grown this much so far is thanks to bitcoin and the people who come in for BTC and are fooled into investing in ETH.

there is not so much "throat cutting competation" going on in the altcoin market among altcoin exchanges. right now Binance is running a monopoly simply because the rest of altcoin exchanges couldn't keep up and the previous big ones that were number one decided to scam their users so they immediately lost their position and fell down to rank above 50!

i wonder where did all these so called "popular crypto traders" went in the past two days that price had hiccup and the correction was going on. all we saw in the news was silence from them and all those articles were replaced by doomsday ones talking about how bitcoin is overvalued and is "crashing"! there was one that was even calling this a "bull trap" and was speaking of price reaching below $7k and back to the price that it started from.
it is funny how the narrative changes online and all the while market is doing its own thing regardless of their nonsense...

not all price decreases are "bearish trend"! so you can't just call what we had in the past days as a "bearish trend" it was simply a correction that triggered some manipulation in some whales who wanted to fill their bags with bitcoin at a discount which is why we saw that big drop but since we are still in a bullish trend for the past 4 months the price jumped back up as they can't keep it down with manipulation when the trend is in the opposite direction.

not to mention that your title  doesn't make any sense! bitcoin "holders" don't care about these short term fluctuations. whether it goes up and down 10% or 50% in one day is not going to change anything for them because they are not day trading.