I'm married to one.
Seriously, people with a real mental illness get a bad rap. They usually don't care about material things and are just struggling to get by. They don't take on weighty issues like this.
This guy probably just has a bad case of stupid. And you can't fix stupid.
When ever I talk to a "pacifist" I tell them: "Oh, Stalin would have loved you".
It doesn't change anything but there is a point there.
Some minds are like concrete.......