Courtesy of Nina Paley
The trouble with organizing politics around peace is that there are a lot of angry people in the world, and they need targets for that anger. The Donald Trumps of the world are good at finding targets for that anger. Peace, as a cause, doesn't present a natural opportunity for political target shooting. Who are the enemies of peace? They're your friends and neighbors, who are angry at immigrants, abortionists, women's libbers, Muslims, and whoever is taking their jobs. It's pretty hard to turn that around and point it in the direction of peace. Rational arguments can't overcome that need for targets.