The argument is ridiculous, but a common one. It's often used by NRA activists and other assorted nuts.
Have you seen "Bowling for Columbine"? It opens with Michael Moore opening an account at a bank in order to get a free gun, promised to everyone opening new accounts... I think this little scene explains a lot more about the gun mentality in the US than all that racist bs quoted above.
I'd also recommend the gun nuts to watch the end of that movie, where Charlton Heston, the chairman of the NRA, attempts to explain the statistics in his own way. Hilarious, but also quite sad.