Whether we should discriminate against these races with “bad” traits is an entirely different kind of question, a moral question. It doesn’t follow from any of the previous claims.
On the other hand, whether discriminating against races with “bad” traits will lead to an increase in utility (for whichever your favorite utility function is), is at least in principal, an epistemic question.
On the other hand, whether discriminating against races with “bad” traits will lead to an increase in utility (for whichever your favorite utility function is), is at least in principal, an epistemic question.
Yes, but the point is that choosing this utility function is a moral question.