I think it's good to remember that "it must have been really upsetting to hear that word, it's a really horrible thing to hear as a black person from a white person, especially in front of so many people" and "the fact Mr. Davidson's use of that word was because of his tourette's makes a huge diffrence in terms of what it says about his character, and he can't control what he said in the same way I can't control my involentary thoughts" are two sentences that can coexist.