Cryptocurrency is just a small portion of their platform and i don't think abandoning YT will help. It's like YT are the authority and we are the society which means we have to follow what are their rules and action about of the cryptocurrency. If ever someone make an alternative to YT then most crypto vloggers will go straight to that platform. But the only thing that most people are doing vlogging is to make money because YT allows it.
And basically youtube will run even without the contents about cryptocurrency, and even without the cryptocurrency content creators as well. They all have their means of running their platforms even without one potential category that they want to wipe out. (cryptocurrency). And we, for us youtube is one great platform that we need, we could not deny that. So, for us to solve our problems, I think we are really in advancing technology so why not develop a streaming platforms? But I guess there's already some established. What we just need to do is to strengthen the support and help others know about it. So even without youtube, we could still be updated to the latest news and updates about our beloved cryptocurrency.