I don't disagree that there's a big problem with the way Black people are treated by police and the criminal justice system in the US. In fact I think the prison system we currently have is pretty terrible and I want to see it reformed, having had three close (white) family members who've been in prison/jailed. I'm just pointing out that there's a big difference between a justice system that's systemically biased against a certain race, and a system that's explicitly put in place to target a certain race.