Violence, whatever the provocation, is wrong.
This is a point of view you only have the luxury to have because you live in a country where the laws has, so far, successfully prevented people being so violent against you that you had no choice but to use violence in self-defense.
Now, I don't live there so my views could be skewed by the fact that I only read the most scandalous articles, but my impression is that the US system does not protect women or PoC, and that it is actually worse than no law at all, because unlike a lawless situation, those who are not protected by the law are not even allowed to defend themselves.
There are no blood feuds to the nth generation not because there is justice, but because those lower in the social hierarchy are punished, sometimes killed (how is that not violence?) by the state itself if they dare to fight back.
My readiness to believe that this is all just bad press and sensationalism and that, in general, the US are actually civilised, has decreased dramatically after they elected Trump.