The problems you complain about in the African American communities can be traced back nearly 100 years to when we created these African American communities.
The Reconstruction era following the Civil War saw African Americans distribute themselves across the entire country. We have census data to prove this. They lived and worked in every county and nearly every city. They owned homes and they worked hard for their living. Now 15 years earlier whites were pissed off at the Chinese for taking railroad jobs so they violently expelled them from their homes and jobs causing them to aggregate into cities which now have Chinatowns. This was considered socially acceptable because they were mostly illegal immigrants.
After those 15 years had passed whites started blaming blacks for their problems, the economy, etc and with the rise of the KKK into powerful cultural force and worming their way into politics unchallenged by the extremely racist Presidents Harding and Coolidge, the whites were emboldened to do the same to blacks. The whites expelled them from entire classes of jobs. They were lynched, their houses burned, and they were run out of towns. Municipalities created ordinances to prevent any blacks from living there to "protect their culture and way of life". The African Americans congregated in large cities encompassing entire neighborhoods/districts and that's where they stayed because whites were too afraid to go on their violent rampages where they may be outnumbered. This behavior however was largely absent in the old South.
In 1921 in Tulsa OK whites went on a rampage to eradicate blacks from their city. They even took airplanes and dropped dynamite on their communities. It's the only recorded air raid on lower 48 US soil. The whites failed as there were too many. The black community persisted there and still exists.
Whites caused this problem. They forced them to huddle together in ghettos. They kept them poor by taking away from their jobs and creating unions that wouldn't permit their membership (fun fact: blacks were allowed in the NFL until 1933).
This is the result 100 years later. Stop rewriting history. Read a book.