>Even if you make the selling of guns completely illegal, how will that change anything? There are still tens of millions of guns in circulation in the USA. Many of them are family heirlooms. It will take a few decades, but the number of guns will go down if they can't be sold, or maintained, or used for practice. This happened in Europe, which was awash with guns after WW2. Another aspect which is often forgotten is ammo. How long does ammo stay good for if stored well?
Europe was awash with guns, but there wasn't a culture that owning a gun was a fundamental right. My grandma took my grandad's gun down to the police station and handed it in. My grandad was a bit upset that it was gone, seeing as though it had been a life-saver etc. for so long, but eventually he stopped his strop. I honestly don't see someone stopping their strop when their SPAS-12 is taken from them because of something someone else did. Mindset is everything.