Are you stupid in the head? Illegal firearms that are in the possession of criminals are in no way stopped by more frivolous laws...
The less restrictive the gun laws, the more guns people will have, and the less caution they will take with them. Just look at all the children who get hold of their parents handgun or rifle, and end up shooting somebody. A simple requirement of having to register all the guns, and to exercise some sort of safe control of them would prevent child on child shootings.
In addition, the fewer guns, or the more preciousness people put on them, the fewer would get stolen, and then end up in the hands of criminals.