> The same calculus is at the root of non-lower-class whites (as well as nearly everyone of high status) in the US avoiding neighborhoods with blacks and latinos.

You know what I'm black, my spouse is white, and what do I tell her? "better safe than sorry". Sure if my spouse acted that way, we would have never met. I believe in personal responsibility, I also believe we have a responsibility to display an image other than the one displayed by "statistics", Hollywood and other cheap entertainment. When a white woman changes sides of pavement when I walk toward her minding my own business, I understand. It breaks my heart but I understand.