First, even “banned” magazines are ridiculously easy to acquire. How long did it take your producers to find that magazine? Five minutes? Ten minutes? There are millions upon millions of these cheap and easy-to-manufacture items in circulation, and “banning” them will have exactly the effects you so brilliantly demonstrated on national television.
Second, labyrinthine gun-control restrictions serve mainly to instantly (and often inadvertently) convert otherwise law-abiding citizens into criminals. It’s a media-created myth that guns are largely unregulated in the United States. In fact, they’re so heavily and complexly regulated that it’s difficult for citizens to track jurisdictional differences or even sometimes to understand the laws in their own jurisdictions.
Third, strict-liability gun offenses breed disrespect for the law.