Uh, we need participation from everyone in order for the fediverse to have legitimacy. We unfortunately need those cringe users if we want large scale adoption. Without it everything stays small scale, developers aren’t attracted to the concept and people leave for functioning alternatives.
No, there’s no indication that Meta cares about the Fediverse.
This is all just a bunch of hype. Yes, of course we’ll defederate if they try. I think that’s fairly obvious.