I didn’t even know about this
I watched one of his speeches at random just to see what the guy was about and TL;DR I wasn’t impressed and I would not be at all surprised to learn that the Republicans are trying to trick leftists into getting behind him. But I hadn’t heard that he also dislikes NATO. That seems like a weirdly specific and incongruous stance for him to take, given how extraordinarily nonspecific was a lot of the stuff he was saying when I watched him.
I think Godwin’s Law died out around the time the actual Nazis came back. It’s actually sort of difficult to talk about some elements of politics and media in the present day without referring to the historical parallels, and one particular parallel is absolutely significantly more parallel than the others.
But you don’t have to justify to me, man. You can abandon the conversation at any point you feel that that’s what you want to do. All the best.