So William Gibson is now spokesperson for why guns are manufactured?
So having devices which allow us to put holes in things at distances for recreational value is worth 12,000 lives per year? Do paintings kill 12,000 people per year? Does playing a violin put people in danger? Do R/C cars cause 12,000 people to lose their lives per year?
Your argument is desperate. Stupid. Comical. Pathetic. Without value.
Guns are only tools, you can ban them but you won't stop people from murdering each other with knives or screwdrivers. UK is an example, even most knives are difficult to acquire and illegal to possess in a public place unless one has a good excuse (works as a butcher, etc.):