To the Editor: Re “Being Polite Won’t Save Us,” by Roxane Gay (Opinion guest essay, Sept. 28): The greatest danger in American politics is not incivility but unreasonableness — the refusal to listen, the denial of facts, the abandonment of deliberation. Ms. Gay is right that calls for civility have too often been used as a weapon of control, especially against those demanding justice. Civility isn’t politeness; its purpose is for everyone in public dialogue to emerge feeling connected, respected and heard. It rarely makes headlines, but in many local communities democracy still works. City councils and school boards show...