You’re both right.

The focus on the black lives is legitimate, because there’s an anti-black bias.

And it is also true that the police behavior is not reducible to only the anti-black bias: the police hubris, rotten “culture” and impunity also play a role.

Venn.

Blacks suffer disproportionately. When whites suffer, cops don’t get punished in many cases too, so, one could ask, what chance do the black people have if even many whites don’t get justice?