Re: but the only place where regular mass shootings occur...
When I've been in countries that have gun ownership (like the US, Canada, Switzerland) I always ask people why they have a gun. Normally the answer is because it's a legal requirement (Switzerland) or they use it for hunting or sometimes it's for protection.
But when I ask the same question to an American they nearly always go misty eyed and explain some scenario where they come across a shooting in progress (usually in a shopping mall or schoolyard) and they are able to save the day by whipping out their concealed weapon and gunning down the shooter.
I'm not really against gun ownership EXCEPT in the US.