Why don’t you look at gun violence/crime in countries where even the cops don’t have guns.
First: I’ve already addressed that. There are social factors that are driving the violence. Other countries with high rates of individual gun ownership don’t see the rates of violence in general, or gun violence in particular, because they don’t have the unaddressed social problems that the US has. Fix the cause, and you fix the violence.
Second: the tools of violence are irrelevant. Violence is the problem, not the tools used. Remove the tools, and the violence continues unabated with different means.