My hunch is that "what gives black people a 'back accent'" is continued segregation into the "black part of town". Not legal segregation (at least not anymore)

My hunch is that "what gives black people a 'back accent'" is continued segregation into the "black part of town". Not legal segregation (at least not anymore), but unbroken feedback loops that keep them there. As a non-politically tinged example, look at black expats in China. They dis-proportionally go into the entertainment industry. Why is that? They usually come over as students (Sino-African friendship and all). Now most Caucasian foreign students find jobs as English teachers. However, many Chinese parents want white teachers as a bragging token, so most schools will not hire black English teachers. With the easiest option out, most of the circle of black friends you'd acquire as a black foreign student partying is involved in the entertainment industry, and suddenly you're a promoter too. There's a barrier to entry in that example (for English teaching), and a self-perpetuating feedback loop (if you have predominantly black friends in China, your network is mostly in entertainment or leaves after finishing their studies). Now back to Compton. Worse barriers to entry, and most of your network has shot someone. What color is your parachute?