@McGentrix,
I cannot open your link, nonetheless there is no comparison.
Japan is a homogenous society with 97% of the population being Japanese. It is not a country of immigrants like the United States.
However, the US born black population is around 13 % and no other group has been more discriminated agains than them. Let that sink in - these people are born in the United States and are hunted down every day of their lives. A close second is the Hispanic group - treated like second class humans and exploited in the most disgusting way. Yet, every trailer-trash, uneducated welfare recipient who happens to be a white supremacist thinks he's ten times better than any black or hispanic person. To manifest their "superiority" they start hoarding guns and work towards their ultimate goal - mass shootings!
Anyone promoting AR-15 and the likes is a very sick individual.