He said Tokyo, London, Paris, and South Africa don’t have shootings. He may be right about Tokyo, since they don’t have unfettered immigration from violence-riddled countries, but London and Paris? There are hundreds of acid and knife attacks every year in London, and Paris has seen the worst terrorist attack since 9/11. South Africa is already a violent hell hole since the original founders have been thrown out of power.
The US murder rate is 111th in the world. If you subtract inner city drug gangs in 5 cities, it would be equal to the murder rates of most Western European countries. This despite the fact that we have more than 300 million privately owned firearms. Most of the countries with higher murder rates than us have strict gun control laws. Look no further than our Southern neighbor, Mexico.
Regarding Tokyo, I bet he would likely not mind living in a society where police can and do give criminal suspects indefinite detentions and can do home searches with little or no notice given in advance. Also, Japan is where it would take American high school mass shooters at least a decade to equal the number of Japanese youths who kill themselves in just one (the times shortly before a school year starts and during the national high school exams are especially bad for Japanese youth suicide).
Japan is also no stranger to instances in which married fathers come home from work to find that the wife has killed both herself and the children.