Your analogy to guns would make sense if other developed nations didnt have civilized gun policies. Seeing as they overwhelmingly do, its nonsense. Stop using a legitimate issue to pry nonsense about guns into it.
You're almost certainly trolling, but rest assured everybody does not want to go to the US, especially those from other prosperous nations. There are plenty of places just as bad as the US in terms of violence and public disenfranchisement, for whom America is a trade up.
Things were so bad in the United States, why would everybody want to come here?