All of this discussion is pointless. USA have terrible statistics regarding murders and accidental death by firearms, compared to other developed countries were having a gun isn't an option. Life isn't better in USA, you aren't more free than britons or spaniards, but you're much more likely to get killed by a gun. There's nothign to discuss, the evidence is here, obvious.
want to believe that the trade-off is worth it because you're so afraid about your belongs, your liberty or whatever, but you can't pretend it to be an easy and clear choice.