"Racism" used to mean that you were actually and actively promoting a racist mindset. Now the Leftist Mob persecutes people for, essentially, making mistakes that superficially look like racism. Donald G. McNeil was fired and cancelled from the New York Times for asking whether someone used a racial slur, in the context of talking about racial slurs. A Chinese professor was cancelled for teaching a Mandarin word that sounds (vaguely) like a racial slur.

Nobody really thinks any of these people are racist. But control must be enforced, that is the point. Catching someone uttering a "forbidden word" is just an excuse.

The point isn't to eliminate racism, sexism, or any of these other bigoted discriminations which have long been illegal in the US. The point is to exercise absolute control over our thoughts, expressions, and behavior - and make us accept that control, view it as normal, justifiable, and even desirable.