The problem is with the penal system itself.
Some people, especially on the left, want to make this about race. They throw statistics out like "13% of population and 50% of the crime" and such. But, it really isn't about race; it's more about class.
Our prisons are filled with people, white, black, and hispanic, from the lower social classes. Their outlook on the world is different from those from the middle and upper classes.
For example, the view/role of men. For the middle and upper classes, the role of men is to be a provider, a disciplinarian, a role model, and the moral backbone of the family. These men will fight to protect these views.
For the lower classes, the role of the man is to be a "He-Man". A lover and a fighter. This man will fight for his honor and reputation. He will fight anyone who "disses" him; who makes him look weak or small. It is all about being the biggest and baddest and he will do anything - lie, cheat, steal, or if necessary kill, to protect his rep. Because of this, stresses will cause one of two responses - fight or flight. With no enemy to fight, he will flee from the stresses of employment and fatherhood; virtually ensuring the next generation of males no role model to replicate.