Every developed nation has people withmental health problems, violent video games and movies, depressed kids.
Only the US has the 2nd Amendment and a PAC dedicated to eliminating any restrictions on buying firearms.
So we have weekly mass shootings
That actually is totally untrue.
It is actually much easier to buy firearms in all other countries compared to the US, except maybe Japan.
The US has over 10,000 firearms laws, and most are complex federal laws, like it being illegal to even drive by a school with a firearm in the trunk of your car.
In other countries you may have to register or license, but that is much less complex than the finger printing and background check you have to do in the US.
All you have to do in the UK, France, Germany, etc., is to join a club and you then are guaranteed approval.
In places like Switzerland and Israel, the government is giving out guns for free, and almost mandating people be armed.