In fact, banks have been under pressure for generations now to lend to unqualified minorities. Even if we pretend it was a real thing, it ended two generations ago. Blaming long dead bankers for the problems of today is the same as blaming ghosts. No one ever tries to explain how not getting a mortgage causes T’Quan to murder Terrelle for his sneakers. Blaming redlining is no different than saying Allah wills it.
There’s a similar problem with lead paint. It was banned in 1971 and government has been removing it from housing for two generations. There’s also the fact that there are no studies showing increased levels of lead in the residents of Baltimore, compared to the surrounding areas. It’s an interesting theory, but that makes it a good example of how statistical correlations can lead you down a blind alley. But, blaming magic means not facing reality so the Left and Right embrace crackpot theories like lead paint as the cause of black crime.