People are shortsighted. It is easy to think that outlawing all guns will prevent mass shootings. That thought completely ignores the fact that criminals and the mentally unstable do not give a shit about laws. Economics tells us that when there is a shortage due to regulations, there will be a black market to satisfy the need (shortage). Why do people “forget” that there is an illegal black market for buying illegal guns. That is different than the private sale of guns (which it is still illegal to sell a firearm to someone with a criminal record who should not have one to begin with).
Laws already exist to prevent people from illegally getting guns. The laws do not have the effect lawmakers expect. The only people who do not give a shit about taking a gun into a federal building are the criminals who just plainly ignore the laws. Believe it or not, my bank allows concealed handguns if the person has a permit. Just because I walk into a bank with a gun does not mean I am going to rob it. Just because the bank down the street does not allow concealed handguns does not mean the person going to rob it will just turn away because there is a sign.
Inmates are not allowed to have weapons. Does that prevent them from obtaining them? No! Weed being illegal on a federal level does not mean people will stop smoking it. Driving under the influence of alcohol and drugs is illegal. That does not prevent people from doing it. In fact, it may shock some people (note the sarcasm), but it is actually illegal to kill someone! Yet, in this day and age, even though there are laws to prevent it, people still kill other people. I know! I’m shocked too!
The point is that every government in the world can outlaw guns, knives, impure thoughts, all drugs, all alcohol, and everything mean and evil, but evil will always exist. There is not a damn thing we can do to prevent it. There is nothing I can do to prevent a determined person from breaking into my house. Is being nice to him going to stop him from hurting my family? Probably not. I can prevent the dumbass from hurting my family by killing him. If I am going to fight someone in an attempt to keep my family safe, I would rather do it with a gun instead of with kind words, and since no one can prevent an intruder from breaking into my house with laws, they should leave me be to deal with the intruder in a way that will let me save four lives by taking one.