Starts out with a lie.
If it is true, how do you explain poor whites? Millions in Appalachia and in the industry-dying Midwest?
In a way there is can be some truth to the statement, for example, if you drive into a McDonalds are all you see are blacks or tattooed up hispanics, are you going to stop and eat or get the hell out of there?
I will get the hell out of there. And whites will avoid black areas in favor of shopping in white areas, but that’s just plain self preservation in action.