What's Wrong With Detroit ?

Why can't the current residents of this once prosperous city live lives without poverty, crime and squalor?
Why can't these people get their ish together and run profitable corporations?
Why can't the city lower it's crime rate?
Why can't the city raise the education level of those still residing there?
Why is Detroit the epitome of "Ghetto"?

Could it be that all the white people and acculturated minorities have left?
Could it be that those still there are somehow genetically inferior to those who came before them?
Could it be that these Black people are just doing what Blacks always do?
Maybe...
But let's look at it a different way.

Why can't people develop thriving economies on the remains of former strip mines?
Sure, all the resources and wealth have been taken from the area but there has to be something that can be done to return these former boom towns to their former glory.
Okay, okay... there may be issues with the toxicity of the environment.
Maybe the current residents were only trained to be workers and not creators.
Sure, some might be able to subsist on what remains from the exploitation of the environment and it's residents but surely some of them should be able to create a marketable product from the detritus.