The cause and effect that is being overlooked, that is common to all these politics driven police/racial incidents, is these are occurring in cities, that are controlled by the democratic party. All the marches in Washington, Philadelphia, Chicago, NY, Baltimore, are occurring in democratic strongholds, where the most people sense and feel racial tensions. Yet this tension is being blamed, by the democrats on the republicans, who have little say in those cities; minority political representation.
This bait and switch scam is expected because the democratic party was party of slavery until 1960's, when civil rights divided the democratic party in northern and southern democrats; Kennedy and Wallace. I would guess the current situation for the blacks, living in large democrat controlled cities, is consistent with the historical ideology of the democratic party; segregation.
Because there are laws in place, the trick for the new segregation is to fool the blacks into thinking the republicans or the party of Lincoln, somehow has control over these cities, and the democrats leadership are just figureheads, doing their best, but under the control of rich republicans. The democratic base, which is highly illiterate, can't read and research this claim, so they just follows the induced feelings of an evil bogey man.
If you compare the violence on blacks by police, to violence on blacks by other blacks, the former is a small percent of the total, but it is being treated, by the democratic paid demonstrators, as the majority effect in those democratic controlled cities. Again illiteracy and feelings play a role in people unable to reason the data, so they relying on induced emotions to guide them. The goal is the same, which is to push the blame away from the source of the problem to another.
The solution involves figuring of how to deal with people with a diminished capacity to reason, so the root of the problem can be brought to light and real solutions can be offered. You can't solve fake problems, except with fake solutions that perpetuate segregation.