I think what we ultimately need is a healthy and welcoming culture of being nice to each other and engaging with each other with a minimal amount of drama. But that's difficult to pull off and a long process. We aren't there yet but we can make an effort.
Question is: how do we get there? Defederation might be part of that. But it's a bad tool with lots of consequences and side-effects. And ultimately the Fediverse is about connecting people. So disconnecting them will prove to be problematic. However we don't all agree on that. And it's a good thing that the Fediverse is a diverse place. You can sign up at beehaw and they have a strict policy and are happy to defederate with a lot of the network. Maybe OP is better aligned with what they do, than be on lemmy.world