I appreciate your good faith response. I see and empathize with your perspective. To play devil’s advocate, you can’t control whether a group of people decide, out of the blue, to internalize hurtful language that isn’t aimed at them. The N-word had a very specific target and a very cruel purpose. The word “retard” did not. It basically has the same vernacular trajectory as “moron,” or “idiot.” From medical diagnosis to non-specific pejorative. Why aren’t those synonyms verboten? Because people like to make things about themselves.