More precisely: cities like Detroit and Chicago are paying the price for America having even waged the inherently unwinnable War on Poverty and War on Drugs - which fostered dependency (WoP), and hyperinflated drug profits and channeled those profits into criminal hands (WoD).
In the war of Left verses right these cities are the first ones that the left claimed victory.
Bull$hit! Make drugs legal and the dysfunctional idiots in Detoilet will find something else to kill each-other over.
Most are illiterates with no skills or education. They will either sell drugs to buy sneakers, rims, and gold teeth, or will steal from you to buy them.