Good points, I agree that the drug war alone is responsible for a large percent of gun violence.
Also our massively larger per capita prison population probably has something to do with it. I doubt people are coming out of prison less violent.
Just a glance at the link you provided, I can't see a link between high gun ownership and murder rate at all.
>Canada and Australia are pretty comparable on all counts.
--comparable history, demography, economy, and culture.
Ignoring the economy, and population size.
Neither one had to deal with slavery on the scale America did.
Neither fought a war for independence or a civil war (the effect of the Civil War and the * massive* death toll can't be discounted. Not to mention the huge increase in gun ownership after the war).
The demographics of both are completely different.
Australians of European descent make up 93% of Australia, according to wikipedia.
As for Canada, they have more asians, who in the US commit less crimes and make more money than average. And they have significantly fewer blacks and hispanics, who in the US commit far more crimes and make less money than average.