Here is your answer. Statistically speaking you are more likely to be around white people if you are seeking middle and upper class people. There are just more of them, relative to both our subsect of well-doing black people and black people in general.White people don’t move from the trailer parks, and think to themselves, let me go live around some high achieving Asians. It’s just that we don’t have as many options in terms of middle class black neighborhoods in every state.
You have weird bizzaro world exceptions like DC/Maryland area, Charlotte and Atlanta but generally speaking you are moving in with white people if you want a upperclass residence, and the amenities that come with it.
Also, lemme note that you see a similar dynamic among both Asians and Hispanics. The minute they leave Chinatown or little Saigon or the burrito district, they move into neighborhoods with white people. You won't find doctor Wong or judge Alvarez living with their people. Their high achievers look down on the critical masses of Asians and Hispanics in their ethnic claves