Should be. This attack and similar attacks should be taken very seriously, they are far beyond any stretch of “boys will be boys” fighting. The attackers are psycho in their actions, and obvious with their mindset they are extremely dangerous people to be loose on the streets. When they finally encounter LEO with that attitude they will end up being shot by a police officer defending their lives and LEO will get the blame.
In the Old South, this would have been handled quickly and decisively. And race would have had nothing to do with the response...