The world won't be considerate and social enough for another 75,000 years as my English Lit teacher used to say. Based on my knowledge and own experiences with reality since then I can finally agree with him.
The reality is that human thoughts aren't totally social, and they want things. This is why there are mean, lawful punishments for crimes; crimes which are essentially anti-social and greedy. The laws don't mitigate the crimes. Punishment mitigates crimes. Laws are just more thoughts.
If there were no punishment for crimes, crime would be much more economically feasible in the minds of the public. Because of lawful punishment for crimes, the economical feasibility of anit-social and greedy livelihoods is slimmed down to a very narrow margin compared to what it could be. If the punishment for it is taken out of the picture, the world is gonna get really ugly.
Gun control means no more punishment.
If the US borders didn't have the largest gun closet ready to rip at all times of the day, the US borders would be sacked. This land is rich. There are great farm lands, very few poisonous bugs, poisonous animals, or diseases. The weather is not to northernly, and not to southernly. And so forth. It's the punishment for that grand larceny on a national scale that prevents that land grab from being set into action and completed. Temptation itches people in other borders even to this day.
On the international level there's punishment for trying to take the land, lives etc, and on the domestic level inside the borders there has to be a punishment for trying to take the lives, property etc.
If you take the US military out of the picture, somebody is coming here to take everything away for strategic purposes and for sport and game. And they will be popular and famous as Alexander the Great and Genghis Kahn forever. And if you take away the public's ability to arm themselves besides the law enforcement, there's no risk for roaming the land and raising hell or causing mayhem.
These are facts of reality, and it's centered on the human thought factory; the brain. Thought can't be controlled by law. You can't just go telling other national entities we got this land, so they gotta stay put. Force controls thoughts not 100%, but much more than no force at all.
A naive law that says we can't have arms is just like yelling out the bank windows, "It's all yours. Come and get it." And it will be taken.
Armed professionals deter crime, and it gives somebody a life that they may not otherwise have without that professional occupation. And churches etc influence social behavior which spreads through out the community. This will mitigate the anti-social/greedy thought phenomenon which is a reality. It's a reality like the cold and dark reality just outside the sill of the world's atmosphere wanting to come in, or like the reality of the light phenomenon that get's in to warm each day.
No one can get rid of dark and cold, and no one can get rid of light. Nobody can get rid of the thoughts such as the CT killer's thoughts. Nobody can. That's not in the cards, and it never has been.
Think about the facts. Protection from too much hot or cold weather is possible with the right tools. That's right. The same is true of protection from the anti-social thoughts which result in heinous actions.
Saying there's a gun law in the books is not enough to deter gruesome thinking and plotting. That's like holding a spotlight over your head in the desert to stay cool, or a bag of ice in your coat in Antarctica to stay warm. The thought of a law doesn't deter the thought that go into a plan such as the CT killer's. 3-5 armed professionals on the young people's school premises would deter those thoughts before they escalate into plans, and before those plans take place.
That's my 3 or 4 cents about it.