See:

> they can't disconnect you, they can disconnect the account you have on their server

There's nothing stopping you from having an alt on a different server that does connect to fascism.social or what-have-you, and the apps these days are pretty good about switching among alts so the UX isn't bad. I will also note, the "stories here" tend to focus on corner cases: instance blocking is predominantly reactive (with Gab being the big exception) and you can always just run your own instance if you want to control your own moderation. I run my own and haven't had any problems with instance blocking.

And again -- if you do end up on a server that implements a block you don't like, you can just move (which transfers your followers) https://docs.joinmastodon.org/user/moving/#move