A growing number of instances (mainly of Mastodon so far) are signing an ‘Anti-Meta Fedi Pact’, pledging to block any instance owned by Meta in the fediverse.
I don’t know how big this will get or how effective it will be, but if you run a fediverse instance, you should take a look at this https://fedipact.online/
I agree in general, although I really don’t understand the “Fediverse is good for privacy” argument. This is a public forum. Everything I post here can be trivially scraped by anyone and everyone, including Meta. There is no privacy here because there is nothing private here.