The hood isnt the hood by chance. Its very systematic.
The government purposefully doesnt invest as much money in the hood.
Lets take New Jersey as example.
Cops in Glen Rock, Allendale, Ridgewood make way more money than cops in Newark, Camden, and Paterson even though Glen Rock has no crime and Newark is riddled with crime. As soon as cops have any experience, they leave Newark and look for jobs in Glen Rock cause they make more money. This makes it so only the worst cops stay in Newark even though Newark needs the most experienced cops.
Lets take schools. This is a real life example. When Chris Christie became the governor of NJ, first thing he did was make major cuts to the education budget. I remember Wayne school district getting the most state funds while Newark, Irvington, and Paterson lost the most and ended up getting the least. Anyone that knows Jersey knows that Wayne is one of the nicest suburbs in Jersey and doesnt need any state funds whereas Newark, Paterson, and Irvington school districts need the most state funds.
I can keep going. There is tons of proof that the "hood" is systematically kept poor.
With that said, everyone that could leave, should leave. Your not gonna be able to build a real sense of community in a place the government is opressing to that degree.
Getting out from that opression is a success.