I have known this for years.
“It’s happening because the party is now completely captured by its most radical, anti-American fringe.”
If you can stand the argument, when you question them about a position and the answer reveals how absurd and self-destructive their position is, they get angry. They don’t say, “oh, I see your point.” They get hostile which is intended to stop you from speaking. I disengage at that point because a fist fight when winning means no change isn’t worth it.
I haven’t bothered asking the questions in a while as so far it has been pointless. It would be easier teaching my cat chess. (After a couple moves, he just slaps the pieces aside. I’m still missing a black pawn.)
They’ve always been on the Left, but Obama pushed them over to the radical extreme.