One look at how the Japanese behaved after the tsunami in 2011 vs. how Americans behaved after Katrina…and you’ll see why the homicide rates are so different.
You cannot compare a country with a long-standing culture based on integrity, honor, etc. with ours. Guns are not the problem. People are the problem.
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For a better comparison, look at Switzerland, where all males are required to own a gun.
Interesting to note that nationality (culture) has more to do with crime than gun ownership does.
“The crime rate among resident foreigners (“immigrant criminality”) is significantly higher (by a factor 3.7 counting convictions under criminal law in 2003).[7] In 1997, there were for the first time more foreigners than Swiss among the convicts under criminal law (out of a fraction of 20.6% of the total population at the time). In 1999, the Federal Department of Justice and Police ordered a study regarding delinquency and nationality (Arbeitsgruppe “Ausländerkriminalität”), which in its final report (2001) found that a conviction rate under criminal law about 12 times higher among asylum seekers (4%), while the conviction rate among other resident foreigners was about twice as high (0.6%) compared to Swiss citizens (0.3%).[8]
In 2010 for the first time was a statistic published which listed delinquency by nationality (based on 2009 data). To avoid distortions due to demographic structure, only the male population aged between 18 and 34 was considered for each group. From this study it became clear that crime rate is highly correlated on the country of origin of the various migrant groups. Thus, immigrants from Germany, France and Austria had a significantly lower crime rate than Swiss citizens (60% to 80%), while immigrants from Angola, Nigeria and Algeria had a crime rate of above 600% of that of Swiss population. In between these extremes were immigrants from Former Yugoslavia, with crime rates of between 210% and 300% of the Swiss value.[9]”