I'm personally happy to take a wait and see approach - because the whole point is that WE have the power. Meta HAVE to play by the rules, because if they don't they get defederated, and it's going to be very difficult for them to convince people to federate with them again after that. If lots of instances start defederating them, then their users are going to start complaining to them that they don't understand why they can talk to some people, but not other people. We have the power here folks.
EDIT: To add - the Fediverse is supposed to be an inclusive place.....