China's population is four times the US's. China's homicide rate is only 1/16 of the US's. This is due to gun laws. Gun laws work.
2016 PRC murder rate: 0.62/100k US murder rate: 5.4/100k That's about 1/9th. Your error aside... That's a nice post-hoc fallacy you have there.
Are you seriously believing statistics coming out of a country that prevents people from watching Youtube or Facebook or using Google, who give jaywalking tickets using facial recognition, by removing funds right out of your account and who freely steal IP from corporations and laugh it all off? Do you know why they don't allow their people to own guns? For the same reason they don't allow their people to do much of anything. You literally would be a fool to believe anything reported out of that country that doesn't come from a citizen from another country.