Wait for another 100 years or less, nuclear weapons will probably be made smaller perhaps the size of our finger. And the launchers will be the size of a pencil box. Perhaps then everyone will instead be owning a nuclear weapon instead of a gun. The argument will be the same. A massacre happened in Australia ages ago known as the port Arthur massacre. Since then it has not happened because the government took action to ban such weapons. One can fight a knife wielding madman but with a gun wielding psycho there is no chance. Whereas most people who own guns (like kiddo) are decent and responsible human beings, but the psychos are also a handful. As the world gets more materialistic, the percentage of these psychos are ever increasing. Mental health problems are increasing. This is not a sane world out here. Majority of the people do not know how to forgive and forget. Majority of humans are driven by revenge. They are driven by greed. This is what makes the world a dangerous place. If you believe a knife is dangerous than why add a gun to these dangerous resources that human can make use to kill?. The lesser these resources the better isn't it. We already have enough to kill. Knives, hammer, Chainsaw, poisons, etc. Anyways death is a guarantee, everyone will die someday. Good people, bad people. There is no need to kill. A gun will make more sense in the immortal world of the future when perhaps you can reason out that you need to kill a certain individual because he gives you the shits and you cannot stand him being immortal anymore. :)