Have fun with your phrases — Black Lives Matter was started to address police brutality against black americans.
If you make it about more than that you are a racist.
If you won’t talk about the core issue of the group and instead use it to attack and hate, that’s what you are.
This is the kind of case that gave force to the BLM movement.
The nut that started shooting at a crowd of cops in Dallas is a murderer, but not a surprise. I don’t think people are going to take much more of the lawlessness from the cops before they fire back. If a cop hurt a member of my family you might end up calling me a killer too.