Your rationalisation of the situation forgot one key statistic when producing any logical argument around mass shootings:
On a per-capita basis, India and China disappear, and you are now comporable to Yemen, Afghanistan and Iraq:
And another absurd fact:
Mass Shootings are Contagioushttps://www.theatlantic.com/health/archive/2017/11/americas-mass-shooting-epidemic-contagious/545078/"there are some data that mass shootings often occur in bunches, which indicates that they “infect” new potential murderers, not unlike a disease. “We find significant evidence that mass killings involving firearms are incent(ivis)ed by similar events in the immediate past,”."https://www.nbcnews.com/health/health-news/yes-mass-killings-inspire-copycats-study-finds-n386141“Several past studies have found that media reports of suicides and homicides appear to subsequently increase the incidence of similar events in the community, apparently due to the coverage planting the seeds of ideation in at-risk individuals to commit similar acts,” Gun culture is like a cancer within the genetic makeup of US society.