Nobody is saying that they can't, mostly what you'll get is calls for defederation.

Calling for defederation is a matter of simply not accepting content or voting from the targeted instance. Everyone has the right to spin up an instance for whatever they believe, but everyone else also has the right to not pass your content through their servers or display it to their users

This isn't to call to shut them down, this is to raise awareness so people can update block lists, instance admins to investigate/check with their users/mods on what they want to do

They can have it. We just don't want to federate with them, which doesn't prevent them from having their own instance all for themselves.

Because I don’t want to interact with them outside of very specific, and sporadic, questions. Their presence is an active detriment to me. Let them go back to truth social.

They're totally allowed to, just as we're totally allowed to defederate or block or whatever. The question is why are they here, when they have taken over all the mainstream places and don't really need a federated niche community.

Why would we want to talk to MAGA assholes who want to eradicate most of the userbase?

They're allowed to make an instance, the software can't stop them. They're not required to be federated with.

Just like how you can say anything you want, you're not required to have someone listen to it, or not have someone speak their mind about it back to you.

Because they are trolls whose purpose is to actively harm everybody else. They do not deserve our tolerance.