Gun ownership in america is a demand
Someone is going to meet it
Happens everyday
Whether its "Gun industry" or "Black Market"
My problem with basically everything you say Fink is it is oversimplified and is not a real solution.
You ban guns. You have stopped a fair amount of foolish people from owning guns and potentially misusing them. Ok.
Your gang bangers and mass shooters ARE STILL GOING TO GET GUNS. Might it be harder? maybe harder for someone like you, but a criminal will always find away, its the same with selling sex, selling drugs and selling guns. Its as simple as knowing where to look and having money. So there are problems that will be solved by banning guns and saying you shouldn't have this one, and you shouldn't have that one, and this one is too deadly, and on and on... minor problems. It doesn't change the path of the criminal. It doesn't make guns not exist. The deranged person is going to find a deadly weapon and use it. Wether its a banned gun or van full of fertilizer. You really have not solved the problem you keep referring to.
You are going to stop some nitwit from shooting himself in the foot, or from their kid shooting them from the backseat, you may stop some marginal negligent idiots. You are not stopping the big fish.