Agreed, and the important thing to remember is that the shift in police to seeing the population they are policing as their enemy, and as universally dangerous in black and poor areas, has been accelerating for decades.
The other side (police, the prison industrial complex and the 1% who employs these thugs) is already very clear about this this being Us vs Them, but the general US population was still pretty heavily in denial about it up until BLM.