I don't agree that some God cursed the US with regular mass shootings every week, mostly because there are dozens of countries where these things don't happen every week, or every month, or every year, but rather once in a decade or even more infrequently. Certainly, you can always have a crazy maniac getting guns and killing a hundred people as it happened in Norway a few years ago, but when you get crazy maniacs doing that every Thursday, maybe you need to consider that there is something that is being done wrong and which can be changed.
Gun violence is entirely a man-made problem, and, as such, can by solved by men. There are many things you can do about it, as many other countries have done. And guess what! I can't remember the last time there was a mass shooting in the UK and I feel much safer there than in a place where everybody is carrying a weapon that could kill you in a blink.