So on hand you say its a culture thing with nothing to do about it and on the other hand you say its got nothing to do with culture. Youve got to make up your mind.
Besides as stated before we dont have the same environment as europe. They basically have sealed borders, by nature of continent, and a very low tolerance for diff types of people with no regard toward human life. They are just not accepted there. They also have a terribly high violent crime rate in virtually every part of their countries. Then again I dont see what we stand to gain.
Lets do some math. US homicide rate is 4.7. Take out 30-50% gang related deaths and youre over 2. According to all the vast majority of gun homicides are comitted with illegal weapons i would say its fair to put us between 1 &2. Even playing field. Now take into account the different reporting by countries and you see that we dont know what we are comparing. We dont have a particularly high rate of violent crime.
Considering the fact that our borders are still open wide, we are extremely welcoming to all even ones trying to hurt us (last weeks events), our government refuses to do its job and enforce laws already on the books. Why do you think another law like this would help save lives? I believe that if wed be enforcing laws we have today, wed be a pretty peaceful country.