Do all the people in the ghetto commit crime, or just a few? Why that few? Most are victims. Maybe people with criminal propensity are not capable of maintaining a middle-class lifestyle (duh) and thus prey on the poor in their own neighborhood.
So it has to be all or nothing for the correlation to be valid?
What color is the sky in your world?
It’s an association that’s easily demonstrated false. It’s an explanation that sounds good. By making it societal it becomes something we can change. Then nature shows up and ruins the party.