After a census on who owns guns,
And that's the point. Outside of urban areas, people own a lot more guns per capita. Urban areas generally have a great deal more restrictions on guns. If one removes big cities from US crime stats, crime rates are some of the best in the western world.
And when we ask violent criminals why they did their violent crime, we find that in almost every case there is gang involvement, black markets, and broken families.
These problems will not go away no matter what gun regulations you pass. Solve the problems that criminals give as the reason for their crime (and they aren't that hard to solve). Don't take away stuff from people outside urban areas that don't have the problem you are trying to solve.
Now here's a little something on point for you, a link to a recent release by a Stanford University study on whether good guys carrying guns reduces crime.
That study has been around for a few years and it was shown to have cherry-picked data and bad models when it came out.
You spend a lot of time looking at studies and stats that have been refuted. And since you keep bringing them up it doesn't do much to try and get through to the little echo chamber in your own head.
If the following bullet points are true, you wouldn't have an argument would you?
-Australia's violent crime rate didn't change after their gun ban in any way from established trends.
-The US's violent crime rate is concentrated in cities where there are less guns per capita.
-You keep telling people in rural areas they are the reason for the violence in the cities.
-You confuse 'poverty', that hurts people (up to and including death) in ways that have less to do with violent crime, with 'income disparity' that correlates very closely to violent crime.