Funny how despite legal ownership of guns in the US, the US still has more violent crime and deaths than Europe. There are more cases of road rage murders than in Europe or Asia. There are far more school shootings and gun battles than Europe or Asia. Are American criminals really thinking twice about their "victim" having a gun? Nope, I think they simply armed themselves with bigger guns with heavier firepower. The average criminal has this mentality: You got a pistol? Well guess what, I've got a AK-47. Not to mention the death penalty. Advocates say it is a deterrence to crime, but clearly that has not been the case.
That being said, part of me agree with you. My gut tells me that I would love the police to just point their automatics at those rioter scum and let them "have it". I bet after "eating some lead", those rioters will quickly back down and cease their activities. Too bad that approach isn't allowed in "democracies".