I'm willing to go a LONG ways back to explain the reasons why the US Constitution has the Second Amendment, and why it's seriously out of date. I'm also willing to explain the reasoning why having a gun for self-defense is a pretty stupid claim. I'm ALSO willing to explain the reasons why gun crimes in America are higher from a purely cultural perspective.
So ya. Long post coming...
History of the Second Amendment and Why it's Outdated
The Second Amendment is a fairly well cited part of the Bill of Rights, however people are taking it out of the context from which it was written: 200 years in the past. The origins of the Second Amendment don't actually originate in America, but rather in rural areas of Britain. These sparsely populated areas rarely, if at all, had a public police force. This made crime a fairly hard thing to combat in these areas. Therefore, the British government gave their citizens the right to carry and bear arms for the purpose of maintaining the peace in the area. They were also allowed to train and maintain a militia for this very purpose. Notice the context. This is not to protect themselves from a tyrannical government, but to protect themselves from outlaws when public authority was NOT available.
But how does that relate to the Second Amendment? Literally, the Founding Fathers copied that very law for the very same reason. America was to be a very new country, so an established system of law could very well take time to reach some of the parts of the country. For this very reason, they copied the law to give their citizens the rights to defend themselves, since law enforcement could literally be days away from even hearing about a crime, let alone reaching it.
This also requires a bit of prefacing about the Constitution. The Constitution was not written in stone. The Founding Fathers made it clear that Amendments were crucial to the preservation of the State. They outline the process of proposing an Amendment to the Constitution because they knew that times change, and with it so should the laws. When a law becomes obsolete, it's only common sense to remove it. No doubt, the Founding Fathers would have wanted many more revisions to the Constitution by now, considering we've been following pretty much the same document over the past 200 years.
So now, we come to today. There is virtually no part in America where law enforcement is not readily available. The need for citizens to take the law into their own hands, which is what the Second Amendment was proposed for, is virtually non-existent. The law is clearly obsolete by the standards by which it was implemented. However, there's an interpretation that it's for the sake of defending oneself against one's government. If anybody sits down and thinks about that, if you really needed to defend yourself against your own government, would you REALLY GIVE A SHIT ABOUT THEIR LAWS!? Fuck, the reasoning that it's in place to justify defense against the government is the stupidest bit of logic I hear.
That's, in a nutshell, the history of the Second Amendment.
Why That Gun is More Likely to Kill You Rather Than Protect You
People always have this stupid notion that having a gun will protect you from being the victim of violent crime. Let's get some facts very, VERY, clear. One, having a gun to protect yourself only works if you're aware of the threat before the threat incapacitates you. Two, it's only useful if you can react to the threat before it incapacitates you. Now lets look at basic criminal logic. One, I'm not going to run at you from 100 m with a knife drawn. I'm going to attack from behind, or ambush you, or attack from a much closer distance. Two, if I have a gun, and you have a gun, and my gun is drawn and jammed against your forehead, you're either an idiot or have a death wish if you try to draw your gun at this point. Three, once I have my gun jammed against your forehead, I'm going to make sure you don't shoot me in the back when I run. And a gun on the black market can easily fetch a couple hundred bucks. So I have all the incentive in the world to steal your gun and use it against you. Four, if I'm robbing you when you're sleeping, I've probably already stolen your gun. So even if you do wake up, you can wake up to the barrel of your gun in your face. Five, if I'm robbing you when you're not asleep, calling the cops will stop me just as effectively as pulling a gun on me.
Now let's look also at the definition of self-defense. If the crime is over, and the perpetrator is running away, will shooting him in the back be self-defense? Is shooting somebody because I'm afraid of the possibility of harm considered self-defense? The answer to both of these is, without a doubt, no. But then how does one decide if an act was in self-defense? Are you just going to take the word of the last person standing that it was in self-defense? Where is the line drawn? This has never been formally established.
Lastly, with guns more readily available, guns are most readily available for criminals. In fact, most crimes committed with guns are committed using guns that were either purchased legally, or were stolen from a person who had purchased it legally. So rather, one of the best options against gun violence is to remove guns from the equation. More guns in circulation results in more opportunities for criminals to receive guns.
Why America is a Gun Happy Culture, Historically
This is fairly evident if anybody looks back the past 100 years. Name some of the most idealized points in American History. I will almost guarantee you that you named at least one war. Name some of the most romanticized jobs in America, past and present. I will guarantee you that cowboy is one of them. Basically, America's gun culture isn't just something that exists just recently, but is the culmination of several decades of glorification of gun ownership.
Shortest paragraph, yea \o/
But ye, long post is long. And no tl;dr. This is discussion, so you read it.