[quo
because the system failed
and let a crazy buy a firearm
the millions of honest folks
are expected to forfeit their rights
of firearm ownership
As George Carlin pointed out, there are no rights if they can be taken away. There are privilages.
Gun ownership is a privilage. Freedom of religion is a privilage. It is something you have because the majority of your fellow citizens agree you should have it.
Nor did the system "fail" in the case of Hinkley or Loughner or Lanza.
The system did exactly what it was designed to do. Make it easy to make a gun sale so that the gun industry could record a profit.
If the gun industry was held to account for the people maimed by their products like the tobacco industry or the automobile industry are, they'd really restrict their customer base to only those they can trust to not get them into that much trouble.