There's a Twitter account that tracks mass shootings worldwide, can't remember the handle unfortunately. But someone retweeted their latest chart incorporating the Jacksonville shooting. It list zillions of countries, most with 0 mass shootings, a few with one, and the US is down at the bottom with > 200 of them, and that's just this calendar year. "Nice job, NRA!" is the title of that post.

Generally speaking I agree - limiting gun ownership on its own won't do it, though taking guns out of the hands of unsuitable (mentally ill) people or severely limiting ownership of semi/auto rifles and large magazines would make a small impact in the longterm. You just have a culture there that normalises violence and strong-arm tactics. You have TV series and movies that constantly build up the hero to be an uncompromising person who shoots first and asks questions later ... someone who just gets things done without thinking of the consequences ... someone who isn't afraid to "break eggs to make a cake".

Countries like Canada and Switzerland have a lot of guns but they don't have the culture that supports violence OR they have a different style of gun ownership. Switzerland is always held up by gun supporters as a proof that you can have low crime and high gun ownership but the facts are that most rifles are owned by the country's well-trained militia / army reserve, not by your average Joe Public.gn the bar down and tighten up semi-autos