Do you agree with "racism and sexism are bad for all definitions of racism and sexism"? I disagree with that statement, I don't think it is wrong to disagree with that. But lots of people agree with it, and then define racism and sexism to be whatever they don't like and you get a boring monoculture.

That is why I hedged my comment with that it depends on how strict you are. Depending on how you define racism and sexism all of those things will change. So blanked statements that we need to ban them without properly defining exactly what we are banning is really bad, but that is what happens almost everywhere in discussions.