Everyone is free to say whatever they want to say, as for me, I am already tired of all these people that are making it seem like Bitcoin and cryptocurrency is the end to our problem.
Yeah, some people are getting tired of both of these.
One that bitcoin will solve any problem that we currently have with this system and the second one the constant doom and gloom, how the world will end, how we're on this deaths spiral, and ...and nothing.
We, as human society has been through a lot more rouble than this, we're been through serious pandemic wiping half of the population, wars leveling countries, famines, and many more, yet, we're still here and far better than we were previously. Every time there is something serious there are some people predicting the end, only to be proven wrong, but they will resurface again, now it's the real end, after that this will be the one and so and so.
The persons who've liked the videos were the real users of bitcoin, while the people disliked were the bank employees

Yeah, the same bias, banks have made a ton of money from people buying and selling coins and exchange fees, while bitcoin hasn't put even a microscopic dent in their transactions, and yeah bank employees have nothing better to do that disliking videos on youtube. Do you think everyone has the same childish attitude?