I didn't say it was. I said it was because of race. Skin color is only one of hundreds of measurable objective racial differences. What does it say about your argument that it rests on such a terrible strawman?
>It’s not even clear where racial lines are drawn
It is abundantly clear: https://i.4pcdn.org/pol/1398471221438.png
>Your comments are why it’s a problem
You are simply stating there is a problem with no evidence to support your statement. Blacks commit more crime. The fact that they get arrested more is due to their committing more crime, not due to "racism".
>reinenforcing the historical data and increasing inequality.
There is no evidence to support your belief. Holding black people to the same standard as white people when they are genetically incapable of meeting that standard seems like a much bigger problem, which causes conflict and violence, far larger problems than a completely irrational belief that inequality is somehow unnatural and societally imposed.