This is where affirmative action is a step backwards. The unconscious assumption goes from "they're an X in this field, they have to be good" to "they're an X i

This is where affirmative action is a step backwards. The unconscious assumption goes from "they're an X in this field, they have to be good" to "they're an X in this field, they're probably just here to fill a quota" and makes matters worse for everybody.