It's a little naive to think gun control resolves the problem in the U.S. Are nutcases like yesterday suddenly going to stop using guns because it's against the law? Those that want to use guns, will continue to use guns, just illegally. All gun control will do is remove them from those that probably won't use them anyway. It's a step in the right direction, but not a resolution.
The argument is generally one of the most ill thought out that pro-gun lobbyists in the States use. There's numerous reasons here but we can make a list.
- Supply and demand dictates that a restriction on gun circulation would increase the price of them both legally and illegally, potentially removing access to many of the "nutjobs" who are generally low income people who developed mental health issues. Aren't many billionaires going on gun rampages.
- The restriction of supply of guns is a generational thing and not an instant thing. The purpose is to slowly reduce the amount of guns that are in circulation with undesirable individuals such as the nutjobs, gangbangers, etc. Through various gun amnesties, buy backs, registrations, seizures and other programs shown to work in places like Australia, the point is to drop gun related crimes over the next 25 years rather than 25 days.
- You've misunderstood the issue in that gun legislation isn't to stop people using guns, it's to stop nutjobs having easy access to guns. It is not a ban anybody is asking for it's people asking for more stringent regulation in both the sale, tracking and storage of weapons.
- Whether anybody likes it or not, whilst America sits banging on about a nearly 300 year old document and an amendment designed to prevent an invasion from the British, people are dying every single day. Innocent people like this woman or kids in school or colleges. Their blood is shed because a portion of the US is so concerned with their "rights" that sensible gun policy is not possible.