The very idea in the design of assault weapons was mass murder. The very name assault weapon was that it was a weapon to assault an enemy position during a war. Assault weapons were not designed for a domestic market. There is no need for a gun that kills 50 people at a time. If the makers of dynamite had a political arm to lobby against laws against the control of dynamite anybody might still be able to go into a hardware store and buy dynamite today. You could say that you had rabbits in the back yard and needed to get rid of them. Of course, when the dynamite went off and took your neighbor's house down and killed their two kids it would be accepted as part of the war on rabbits, but the important part is that the dynamite industry would make much bigger profits and they could pay much bigger political bribes. It is like a snake eating its own tail.