> Yet because of the de facto segregation of America, whites are unlikely to have many black friends

As a non-American I find this surprising. After absorbing American movies and TV shows I honestly picture average middle class America, at least in the Northern states, as being a true mingle of races where almost every white guy or girl would have at least 1 or 2 black friends in their immediate social circle. Similarly in the workplace.

Is that really not an accurate picture?