It's not hard to imagine how someone within the conservative cesspit would end up with a worldview that's a complete mess.
It takes education that not everybody has access to to see through the junk science of neoliberalism, transphobia, climate denial and anti-vax. It takes context that not everybody is exposed to to realise that friends and family who have always been good to you, may not actually be good people.
I have a small amount of sympathy for him. His life and feelings were being used to push a far-right agenda that he's clearly not comfortable with, making him the latest target of abuse. He's got more in common with the LGBT community than he might want to admit.
But my sympathy dries up quickly. He holds views that are deeply damaging to society and didn't seem to have a problem when it was other people on the receiving end.
If he can learn from this and shake off his other shitty views, I'd have some respect for him but until then the enemy of my enemy isn't inherently my friend.