What never fails to astound me about these discussions is the number of people who treat it like it's a purely theoretical exercise. Well we have no idea what will happen if we do this so we have to make up all these premises and assumptions and model everything and try to figure it out...
But it's not a theoretical exercise. It's been done. Over and over and over and over. For decades. Out in that place called "the rest of the world that isn't the US".
We have the test results already.

Data all falling along nice straight lines like that represent very clear and strong correlations.
And before anyone says "but that's GUN deaths. Of course gun deaths track gun ownership but imagine all those defenseless people in those disarmed countries being murdered by those other things because people who want to kill people can *always* find a way to..."
No.
http://www.statcan.gc.ca/pub/85-002-x/2 ... 04-eng.gifThere is not some balancing out larger number of non-gun deaths in nations that don't have all those gun deaths so the homicide rates even out.
You'll notice the four countries with the overall highest rate of homicides are right up at the top of the list in gun deaths and gun ownership rates. They go together. The only large outliers are Switzerland and Mexico. Mexico is in the middle of a long term raging drug war so yeah, it has a high murder rate. and Switzerland has a low murder rate because as discussed earlier they pair that high rate of gun ownership with *universal* discipline and training requirements in mandatory militia duty.
So I agree, let's stop looking at cars or drugs or alcohol. We don't need to. We already have the fricking gun data. It's silly that this is even still a matter of debate at all.
As for the "but nobody thinks we have a gun problem in the US" angle. Yeah, and lots of Americans also think they have the best health care system in the word. That's an education problem that stems from the same root cause as I already hit at the top of this post. An astounding number of people in the US look at the world as if the US is the only thing in it that they need to concern themselves with and everything else is irrelevant.