Good point:

Punishing the rest of the gun owners because of what some left leaning psychotropic drug taking criminal does....

Just like the freedom of speech, the right to bear arms has always been subject to reasonable restrictions by Congress. I believe Congress has a responsibility to balance the right-to-bear-arms with the concern for public safety and stability.

 “I believe in tolerance and unity and that every man and woman should be treated as equals. However, since the number of crimes committed by blacks are higher than any other race, I believe Congress has a responsibility to balance the rights of African Americans  with the concern for public safety”.

One is as logical as the other.