[didgeoridoo]

If someone with coprolalia is involuntarily induced to say the most awful, inappropriate thing possible in a given situation, doesn’t shouting slurs show that they aren’t racist?

Someone who is deeply racist would presumably consider racial slurs to be neutral statements, and not actually care about who they are offending. I wonder if that would actually steer the coprolalia away from racial slurs and toward something else that one has internalized as truly “offensive”.

[jfengel]

A racist knows that the slurs are offensive. He knows that people will be hurt by it.

He may also use the term even when he doesn't intend to harm people -- just as you might casually use otherwise-offensive words for excretion or copulation. But you don't use them in polite company because you know that they bother people.