Inner-city marginalization accounts for a large percentage of criminal activity. Impoverished communities without resources for schools, community centers, and stable infrastructure.
As we have established, criminals aren't born, they are made. Poor communities without means for education, nor the resources to provide blue-collar jobs for those who cannot get educated leads to a cycle of crime, drug dealing, prostitution and violence. It turns out that poor communities can feed their children with money made from dealing drugs.
Society allows for a situation to exist that reinforces and legitimizes the underground criminal activity, and then it blames them for being violent drug dealing criminals.