Most of this is mitigated completely by making everything read-only except for a small number of users you know personally. That doesn't actually preclude most kinds of political work (e.g. noticeboards for protest organising). It does preclude social media, obviously.

See, the problem here is you've already been put on the footing of the group that loses.

You have to hide like a little mouse in the shadows. Meanwhile the cat gets to track your every move. The cat gets, not only to defend itself where ever it wants, it can say anything it wants about you without you with you having no way to defend yourself.

Can if the cat is both evil and particularly smart it will set up things like its own No Kings forums where every person is tracked and manipulators either block or allow messages based on how much they can control the audience into reaching the opposite goal they actually want.

When someone goes looking for you, who are they going to find? With the modern net, probably not who you want them to find.