I wish they would get this fired up about black black crime. Every profession has its share of assholes and people that are flat out incompetent. Police are no exception. More whites are killed each by police and I don't hear a pep from the activists. We also don't label all cops by the sins of the few.
And yet you don't have a problem labeling all blacks by the sins of the few. That is part of the issue. Innocent black people are regularly treated like criminals during
every interaction with the police.
A lot of those people involved in these protests are, in fact, involved in trying to reduce violence in urban neighborhoods. I know that is definitely true in my community.