Society works because human evolution happens at the rate of learning and communicating new behaviors -- exponentially faster and more effective than genetic evolution. The human genome has changed exceptionally little for hundreds of thousands of years, and so called "race" is the fantasy nonsense that its somehow possible to tell the contents of a person's mind just by the light bouncing of their skin.
I don't think its enough to call it stupid, we gotta start attacking the root assumptions that drive the ideology.