How are wealthy people in big cities able to avoid having a large chunk of money taxed away from them to distribute to the people in the lower class of the big cites?
If you have never learned this by now, you aren't interested in learning.
But for a high level view
- Long time biases in home loans and banking practices and redlining led to there being pockets of poor minority people in cities. Other factors were cities systematically taking property away from Black people and seizing Black churches without fair compensation for urban development. Shifts to a car culture led to highways cutting through cities, and Black neighborhoods in particular were ripped apart by such projects.
- when racial integration was introduced, white people who could afford to move, left cities to go to suburbs where minorities were not allowed to buy houses. They took a lot of the tax base
- low income people are kept out of suburbs by purposely not having public transit.
- Forcing poor people (who as cited above were disproportionately Black) into certain neighborhoods created ghettos. Since poor people, regardless of race, commit more crimes, this led to a high degree of crime in these ghettos.
- Police did not protect people in ghettos but singled them out for aggressive arrest tactics. This enforces poverty in those neighborhoods because people who arrest records are banned from getting a lot of types of jobs. It also creates poor families with no father in the picture to help keep the kids growing up well.
- Republicans tend to hate poor and minorities so they elect republican leaders in their suburban enclaves. Democrats want to help those people so they are elected to run the cities, however their efforts are often blocked at the wider local level (e.g. my city of Pittsburgh is limited in what it can do without the buy-in of the county it is in) and state levels.
While you create this intricate, fictional backstory to explain away biolgical dysfunction, those of us in the real world understand that you can't polish a turd.
The problem with big cities in America is that they're mostly populated by inner city Americans. To pretend the problems stem from some convoluted web of historical injustices is ridiculous. Did you crib that directly from Howard Zinn?