> If we identify groups of people that are indeed stupid, what do we do about them as a society?

> We've tried mass murder and it backfired, we've tried other eugenics programs and it backfired too.

Why do you think we need to do or eliminate anything/anyone? Do you think we need to eliminate people due to the other properties you listed too?

If you want to do something, then give people the opportunity to become better, but whether they want or not is still their decision.