I beg to differ - they are being constantly proselytized to hate, brag, do drugs, "get over", treat women as ho's, leave a string of fatherless children with as many different baby mamas as possible, etc.
This is being done by powerful forces - media conglomerates, government bureaucracies, etc.
One of the biggest problems is a complete lack of belief that they will ever be treated fairly by the system.
If you believe that the police are corrupt, and you cannot count on them to administer a reasonably fair legal system, you only have tribal type justice to use for any wrongs.
The system in Chicago is corrupt.
New York brought its crime rate way down by the simple expedient of prosecuting all crime, especially the small ones. People started believing the system worked.
It is called the broken window theory.