Gun Control & RKBA

who is then served a restraining order that makes him doubly prohibited, gets his girlfriend to illegally buy and give him a non-automatic, low-velocity, low-ish powered rifle, which he uses to shoot innocent people in a posted no-guns zone.

This proves that the most popular civilian rifles in U.S. homes must be banned and confiscated from non-felons and the mentally competent, even though rifles remain the least misused of all weapons in America (less than 300 murders/yr out of 12,000+), and even though banning said rifles wouldn't do anything whatsoever to address criminal gun misuse or mass shootings.

If you want to know how the U.S. gun control lobby has been continually shooting itself in the foot since the early 1980s, there you go.