State passes tough gun control laws and gun crime declines, it's proof anti-gun laws work.
State passes tough gun control laws and gun crime stays about the same or even increases, it's the states that don't have tough gun control laws fault!
Genius!
Even if that were true, and I know you aren't implying that it is, gun control laws would still be in violation of the Constitution. The increased rate of crimes committed with arms would be part of the price of freedom.
But of course the restrictions on freedom actually seem to increase crime rates, often even the rates of crimes committed with firearms.