Don't be fooled.
There might be a very small cadre of “toughs” who could stand up to a real conflict, but the vast majority of “black lives matters” would do exactly what their forebears in Africa still do. The first shots of incoming gunfire and they run tail and flee, leaving behind women and children to be trampled.
I have seen it over and over again, in Africa, Afghanistan and Iraq. The only way the Taliban get people to do some of the things they do is to drug them up just before the attack. Or have so many people in their group that they think they can human wave win the battle. After the first line falls down, they start running also.
Only western trained and acculturated people, of any race, go to the sound of gunfire. All the rest flee and run.