Yeah this guy is an alt-right troll trying to spread as much hate as he can, PTB for sure. I recommend contacting as many instance admins around the Fediverse as you can to make them aware of this issue. Hopefully SDF’s admins intervene and put an end to this situation, otherwise it’s not looking good.

Edit: I started reporting their posts on my other account and I was banned after just submitting five reports for reason “Libtard”.