Got dozens of countries already light years ahead on this and they are operating perfectly fine without loads of gun violence despite similar rates of mental health issues.
Those other countries do not have similar rates of mental health issues, or similar social situations at all.
If you ignore guns entirely, the US still stands out from other countries with an extraordinarily high rate of non-gun violence. It's more accurate to say that the US has a violence problem in general.
If you're truly interested in solving the violence problem, perhaps examine why the US is such a statistical outlier. And also, perhaps, why other countries like Switzerland have such different outcomes while still having extremely high rates of private gun ownership.
Switzerland rules for firearms ownership are a lot more restrictive than the US (background check for everyone, no automatic weapons, etc), and although the percentage of guns per 100 people is higher than other countries, still is about 1/4 of the US where there are roughly 5 firearms every 4 people.
