This is one of those moments when there is broad popular frustration, a moment when liberal goals require measures that seem radical by today's standards. If progressives don't articulate those frustrations and propose real solutions, rightwing populists will propose crackpot ones. Token gestures won't fool anybody.
It occurred to me that afternoon as I was heading toward a stroke that no amount of facts or evidence was going to change this guy's mind and that neither of us was going to leave unscathed. I took the easy way out and said, "I'm sorry, but I've stopped arguing with people who are impervious to reality," and left it at that.