Being completely honest here, I don't think we should defederate from them. I don't see a point why. They are clearly pro-LGBTQ+, have huge support to our fellow trans brethren.
It also rubs me wrong in every single way to outright scrutinize one of the oldest still active Lemmy Instances, we all have to clearly remember which folks precursor the majority of us. Those being the left wing folks, we should respect their space and we respect theirs, otherwise it will be like mocking them to their faces. I have seen it with many others users treating them like garbage, how about we don't? It is like inviting guests to your house and them stealing that home and turning it the way they want, and when you complain they start spurting crap about you being horrible, etc, etc.
I have said this one, and I will say this again;
For fuck's sake keep your mouth shut, and move on(This doesn't apply to fascists/conservatives). (This comment is not meant to come as rude, I am just stating my honest opinion.)