You really can't reason with these people once they've gone too far down the rabbit hole. I got in an argument with someone on Facebook a few days ago. They said that the right is racist. To clarify, I asked if they meant the whole right was racist or just some of the right. They replied, "The. Whole. Right."
They have redefined the right and dehumanized them to the point that cheating and violence is okay. They're fighting nazis after all, so the ends justify the means.
