We don't -- because we can't -- lump all gun deaths together. Suicides comprise the majority of gun deaths -- about 2/3 of 'em. Those would happen anyway.
Vermont has the country's second lowest murder rate, and lowest gun murder rate. And it has the the 19th highest gun-ownership rate. Yes, there are a lot of guns there. There are very very few murders there. Those are very relevant numbers.
Maybe, just maybe, it's not the guns.
All I am saying is
More guns = more deaths. http://www.hsph.harvard.edu/hicrc/firearms-research/guns-and-death/
It just seems sensible to me that if you want to lower your nations numbers of gun deaths, your answer is to lower the number of guns.
Do you have a link to say that the suicides would happen anyway? That was my initial thought, but it appears the availability of guns in a country increases the amount of suicides.
Maybe it's not the guns, but the research thus far says there is a very, very high correlation. Just about every civilized country on the planet shows this trend.