The instance seems to be mostly right wing trolls. I know defederating is unpopular but I don’t think much is to be lost in this case and it can save the mods some headaches.
Edit: the response on exploding-heads.com to my reporting of transphobia. Courtesy of the “second in command”
That’s the thing though, most (all?) alt-right arguments aren’t based on facts and opening the door for them to even try and defend their point of view also opens the door to the radicalisation of people who are potentially swayed by non-rational arguments.
Give them as little visibility as possible so people who might be convinced by them get as little exposition as possible and society will just be better for it.