I know what you mean when you say “he’s completely impervious to well presented sound logic and concrete evidence which I see him scoff at on a regular basis,” and you’re right.
He will occasionally back down to Krathammer, and that Col. Peters, but they’re about the only two.
He drives me crazy when he doesn’t let his guest get a word in. He does this to Brit Hume constantly and I wonder why Brit bothers to do the show.