What we need is some universal moderation guidelines. Like for example; sticks and stones may break my bones but words will never harm me.
As long as people follow the server rules, aggressively presented arguments, anger, fear, rude words said to famous accounts, should not lead to de-federation. Our rules already disallow all forms of xenophobia, transphobia, attacks, doxing and all that stuff.
End users need to take more responsibility for moderation in the fedi. That's why we have the Mute button. But people would rather take "action" with the Report button, than the Mute button.
Because they get so angry at some stranger online. You don't know anything about that person, or what they're going through.
I have experience meeting reformed nazis, previously violent people who are trying to reform. So people go through stages in life, and maybe sometimes they're a bit off, but some day that person is going to wake up and then we should be able to help them out of their daze. De-federation makes this impossible.