The examples that cause the riots are noteworthy because they are the exception, not the rule.
Every policy our police comply with, and every training program our police receive, are anti-racist. You cannot be any more systemically anti-racist than we are now.
All we can do is pursue the actual instances of police brutality which occur in violation of police policies and training (they don't occur because the system supports them). But, the riots, and an us vs. them mentality, in which people judge the many (police) by the actions of a few (bad cops), are counterproductive to this, since it groups the good with the bad, and most cops are good, so attacks on entire police forces for the actions of one or two guys are doomed to fail.
And, as I suggested, we can heighten the standard for police to shoot, which is a non-race based change, so it benefits all of society. Of course, every time non-blacks try to get involved, they are pushed away, since all lives don't matter, just black lives. That tells me BLM really does not want change. They are strengthened by discord and violence. They want benefits for their group based on race, they do not seek society-wide beneficial change.)