Impossible.
Obviously, the black cop throttling another black American does not fit the leftists’ narrative that white cops are the bad guys, and black cops are not. Something which should be abundantly clear to most anyone who pays attention and thinks rationally, cops are cops. For the most part, the uniform they put on to do their jobs supersedes the color of their skin. That has been my experience in life thus far.
And, just like people everywhere, there are some who are good(some even great) at their jobs, then the few who should be not allowed to wear a badge. Unfortunately, the latter are the ones who end up in the news when they come to the surface with their bad behavior. Those few need to be dealt with in no uncertain terms.