There is another side of the Fediverse that operates on the principles you are talking about (eg. Poast, Baest, Spinster, Gleasonator, NoAgendaSocial, NicecrewDigital, et al). That part of the Fediverse, like Nostr, is covered in Lolicon, gore, and Nazi memes because that's the userbase you get when you promise that nobody can stop you from posting whatever you want.
More and more I am learning that the people who desire censorship-free social spaces are the kind of people that others rightfully exclude from polite social spaces, because these are people who lack respect and want to say and do horrible things without opposition.