Nothing happens to YouTube if there is a massive boycott from some so called crypto influencers and their followers because the majority of the content viewers are outside of that scope. The reason for the mass deletion of contents might be flagging of the content by their competitors and it is possible that if you are getting flagged for the videos multiple times your content will be removed.

Since you said about this HyperSpace i just checked their site and it said they are shutting down, so good luck taking that as an alternative .