How's banning those assault knives going in London? Assault cars? Guns are far from the only way to kill people.
The tools are the problem, the people wielding the tools are always the problem.
The tools are the problem, the people wielding the tools are always the problem.
If we take your argument to its logical conclusion - why have any laws or regulations at all? Such arguments are silly.
This simple and obvious fact "disarms" any gun "control" arguments.