If guns are not the cause of violence and banning them isn't for the better, why is England a less violent place than America? The gun murder rate in England is

If guns are not the cause of violence and banning them isn't for the better, why is England a less violent place than America? The gun murder rate in England is 0.1 murders per 100,000 people, in America it's 3.2. Oh god, stop comparing a huge ass country with states with lot of differing laws to a small european country!