Even if all the crypto community boycott YouTube, I highly doubt it would affect them or slow their business.
There are other great alternatives out there such as Twitch, Vimeo, dailymotion. But honestly, none of them can be compared to YouTube.
A boycott against YouTube is useless. This platform has billions of users, unfortunately the crypto community is much smaller. Let's hope this is YouTubes mistake and everything will be the same as soon as possible.