Liberals always operate under the assumption that everybody thinks the same thing about what they hold dear. It does not cross their tiny minds that criminals will acquire firearms illegally or use other weapons to commit crimes. Law-abiding people will always be at a disadvantage in those situations.
Maybe these numerous outbreaks of black mob violence afflicting the nation only happen in states and cities where it's tough for lawful people to carry firearms, but one day we're going to read about a mob of black youths who tried to assault the wrong person. I hope it comes very soon.
Already happened.
https://en.wikipedia.org/wiki/1984_New_York_City_Subway_shooting It didn't go well for the defender, even if it was a small 'mob'.
With the mobs nowadays, class three firearms and destructive devices would be a definite defensive asset. Crew-served weapons would get extra credit.
The thing I have noted about black mob violence is that it happens where there are black mobs, and those mobs, for whatever reason, seem to appear most often where it is more dangerous to a person to be caught by authorities defending yourself than taking your chances with the mob.