Don’t forget that state can print fiat
Discussion
The state will simply put me in jail as soon as they dislike something transmitted by my relay.
That's true, but if your relay is not technically able to censor at least you have a chance at plausible deniability. If you technically can, or they may misconstrue it to make it look that you can, control your users' content, then they will 100% use that against you.