Even back when I was an adolescent and gun-control came up as an issue, I got weary of comparisons with say, for example, Sweden or Japan or Greece.
Even back then I knew that such places had a relatively homogeneous population (i.e., Swedes, white, Lutheran, spoke the same language uniformly, common historical background), whereas the United States consists of various ethnic and racial and cultural groups, some of them at odds with others.
Also, these tended to be small countries in either area or population, or both, whereas the United States is a pretty big country, in both area and population.
If one wished a realistic comparison, one should compare apples with apples (i.e. countries large in area and population and consisting of diverse ethnic groups)--the United States with Brazil, Russia, Indonesia, Pakistan, Nigeria, Mexico, &c., &c., &c. (leaving out China and India for sheer population).
In which case, when it came to violence, the United States was pretty peaceful.
But nobody paid attention to me.