@rmxt may or may not be right, personally I think he is, but stating outright that segregation (within living memory) has "exactly nothing" to do with the current state of criminal justice is clearly a hasty statement... that given a moment to think about I'm sure you'd take back, right?
...and if he is right, then the reason why he's right will be useful for solving the problem. It's pretty tough to solve a problem when you don't understand what caused it.
By the way, dismiss identity politics at your risk. It might be uncomfortable to talk about, but it underpins a lot of current affairs: crime, Russia, Gamergate, ISIS.
Recommend reading this. It's long, but worth every painful line: http://www.huffingtonpost.com/good-men-project/why-its-so-ha...