Just to be clear, I don't think people are using the black on black crime argument to justify police brutality. The argument is that, at a national level, black lives only seem to matter when a white man (or person that can be portrayed as white) kills a black man. We can have the discussion about reform, but that is not the narrative that is really being created.

Black Lives Matter is an accusation. Inherent in the name is the accusation that black lives don't matter. Most people don't believe that. There is an accusation in the narrative that white people murder blacks indiscriminately. That isn't true, and why you get the black on black crime rebuttal. There is an accusation that a black man has a higher chance of being shot than a white man by the police. That is not true, either. There is no evidence to support this narrative.

I believe there is evidence that suggests blacks are incarcerated at a higher rate, and bias almost certainly plays a role there. There is evidence that police hand cuff or shove blacks more frequently than their white counterparts, and some bias probably plays a role there.

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