The gun control advocates argue that having fewer guns equals fewer deaths. And that more guns equals more deaths. If everything else is equal then areas that have a high number of firearms ownership should have a high rate of gun related violence. Consequently, low firearms ownership should lessen the amount of firearms related violence.
There are any number of factors that influence the rate of violence. It is impossible to identify and even quantify them all. Therefore any conclusions one draws should be tentative.
Think about that when presented with facts, statistics, and evidence.