The state of Arizona has very lax gun laws and issues permits for people to carry weapons....they also have the lowest crime rate in the country.
You exaggerated a little bit. Scottsdale, AZ has the lowest crime rate in the country, not the entire state of Arizona.
Says Wikipedia: "Crime rates vary greatly across the states. Overall, New England had the lowest crime rates, for both violent and property crimes. New England states also had the lowest homicide rates in the country."
You can't be serious. If you were to let everyone in with guns, it would be possible to easily co-ordinate an attack among a group. Everyone having guns doesn't remove the element of surprise. If twenty people pull a gun, what are the odds everyone's going to automatically know who pulled in the first place as opposed to shooting at someone who *looks* like they *might* be the loony? Step up security. Job done.
That's absolutely right. Giving everyone a gun doesn't resolve the problem. In fact, it exacerbates it.