Not sure if corporate ball-washer or incredibly naïve. Facebook (not using their attempt at rebranding) have more than enough resources to research new and innovative ways to screw over federated instances for their gain. Their goal isn't to win, it's to completely dominate. But I'm sure a plucky bunch of volunteers stand a chance against a demonstrably malevolent corporation with infinite money.
I've had nothing to do with Facebook or its offshoots since 2015. They've used their algorithms to pump all sorts of disinformation and manufactured outrage at the expense of society. That alone should be enough for people to defederate. The abusive information gathering is just the shit icing on a turd cake.
I will likely be shifting to an instance that defederates from Facebook. If that makes me "toxic", that's a cross I'm willing to bear.