Political correctness, politeness, and the Persianate concept of "adab"

I've got another article in Slate. I argue that Americans fear so-called "political correctness" because they imagine it as a system of thought control that harshly punishes people who get their words wrong. In fact, the idea behind what I would instead call "inclusive language" because that's a more neutral term is that if you want to be polite you have to learn about people's preferences in communication and so get to know who they are. Showing this kind of respect is an affirmation that the people having the conversation are part of the same community, e.g. a nation. Because I couldn't help myself, I brought in the Persianate idea of adab ("good manners"), which has at its core the idea that respectful words and deeds are important because they connect everyone in society.