No one is asking for a racial slur by using a "suggestive term" for a nom-deguere if they are describing themselves.
However, just because someone is a bu%%hole, does not make them racist. FWIW, it seems the ones supposedly "color blind" are playing from a deck of 52 race cards.
Sometimes we must remember that ignorance is correctible and stupidity is not. Neither of those is a crime either!