Well actually I was wrong. In 2015 50% of the people shot by cops were white. 26% were black. White lives don’t matter.
You have not accounted for the fact that 60% of Americans are white, 13% are black, 18% hispanic, 9% other or mixed. Thus, blacks are disproportionally shot.
But of course there is a simple explanation, they are disproportionally criminal and disobey police orders far in excess of whites.