It just never ceases to amaze that a large portion of our society thinks its a good idea to give deadly weapons to people who have no proven ability or intent to use them lawfully.
Yes some of the watery, irrelevant arguments used regarding cars and pens and hands used for killing are strange. As well as the Constitution protecting their rights absolutely.
Automatic weapons provide anonymity, you can kill multiple victims, from a safe distance, with the ability to reload in seconds and you can easily move onto the next victim with very little energy spent, unlike the above. Guns make it easier to kill others and yourself.
The right to bear arms is not absolute, it comes with responsibility and limits in much the same way as the right to free speech. It ends when it infringes on another persons right to liberty and the pursuit of happiness.
Besides which cars, pens and hands have other usages apart from being used a a weapon in killing people. A gun can be used to threaten to kill or kill.
Obviously, there is a problem with criminals having access to guns, which is why so many people feel they, too, need a gun for self-defense. But this is a vicious cycle: FBI Crime Reports sources indicate that there are about 340,000 reported firearms thefts every year. Those guns, the overwhelming amount of which were originally manufactured and purchased legally, are now in the hands of criminals, people with a point to prove, people who want revenge or mentally unbalanced people.