Back in the day the black neighborhoods had middle class families, professional class families, as well as poorer class families. When housing discrimination ended the more functional people moved into the white areas. That left the less functional who could not afford to leave. This created a cycle of concentrated poverty. It’s not just blacks in these neighborhoods. Poor whites, Asians and Hispanics also live there. The more functional families get it together and leave. The ones who fall into the spiral of drugs, alcohol, gangs and the false promise of government dependency are all that’s left.
And they are perfectly comfortable to remain there.
(Really sad to watch someone who tries to break out being pulled back by his or her "peers" who resent anyone making progress...Not real different from the way many workers respond to those among them who go to school or work their ass off to get a promotion).
In Houston, Sheila Jackson Lee represents the Heights. There are 300k to 500k homes in there. Even her own staff hates her (least liked Representative).