It's not guns

Its truly awful.

First of all, mass school shootings are rare here. Our media though loves to cover them waaaaay more and in excruciating detail than other countries do because it's so profitable for them.

Violence is typically very low in homogeneous societies. It's higher in heterogeneous ones. Compare the US with other hetero countries, we aren't near the top of bad.

Want to see violence greatly reduced in the US? Simple -- deport all non-whites. It took a century before whites from different European ethnicities learned to live peacefully with each other. Different ethniticities from around the world hate and kill each other. Our idiot pols import them then force them into very peaceful communities.