I think suspicion is the absolute least we can react with to a soulless megacorp like Meta.
Honestly? I think defederating from them is wise. In some ways, I think this is kind of like the tolerance paradox; we're open and tolerant but we know the second Meta smells money or power they'll betray that tolerance, so do we show them tolerance knowing how they'll exploit us?
I don't think we should. Don't let them sack the commons.