Unfortunately, the "police only kill black people" narrative is distracting from this reality. If people could focus on the fact that the police is unnecessarily violent and lethal towards anyone it could change quickly. Focusing on black people basically makes 80% of the population feel - wrongly - like they don't need to worry about the problem.
And yeah yeah, "ratio something disproportionate blabla". I dont even care. The reality is if you want to be pragmatic and fix the problem you need to get buy in and support from as many people as possible. You need all people to understand that anybody can get gunned down for effectively no reasons.