De ~ "Prejudice is a survival trait."
It's why black people sometimes get concerned and take immediate precautionary measures when they encounter black males on the street. They are "prejudiced" in the sense that they know, statistically speaking, they are more likely to be attacked by a black male than any other person. It's simply a fact.
The essential American soul is hard, isolate, stoic, and a killer. It has never yet melted. ~ D.H. Lawrence