> Facebook, for better or for worse, is a really central piece of infrastructure for civic society all across the country nowdays — it's used to organize churches, meetup groups, neighborhood parties, restaurants, festivals, etc.

This may be true, but how many people in those church groups, meetup groups, etc are actually concerned about censorship? In my experience far more of them are worried about harassment- I know far more women who can't use social media because of their stalkers than I do people who were kicked out of social media for having bad opinions.