Sally Kohn: I was very interested in your conversation with Glenn Lowry, who's a professor of social sciences and economics at Brown. Lowry described political correctness as a moral signaling equilibrium where people don't want to be thought of as on the wrong side of history. Kohn: My view is just that I am totally allergic to identity politics. That will not give us the world we want to live in. She says race has no more moral significance than hair color.