The United States asks its people to accept many odd things, but it's the acquiescence to mass gun deaths that is the most astounding
No nation on Earth values freedom and democracy above the USA. The 2nd amendment is part of that unique mix of well thought out measures to uphold the freedoms and the democracy that the USA stands for. - A well regulated militia - Don't tell me Dan you can't get your head around this part of the 2nd amendment. It puts the fear of the citizen army into the very heart of government that might think of messing with civil liberties. Think how the world might be if places like Belarus, Burma, Hong Kong, etc were legally able to challenge their unwanted governments.
People kill each other for a number of reasons. Guns make it a lot easier. Removing the guns just makes the will to kill a bit harder to accomplish but does not remove the cause or the will. That's another argument.
"Crack Down"? What is that? The heavy hand of some tyrannical dictator "cracking down" on the 2nd Amendment? You need to understand that your version of cracking down is exactly why we have a 2A. Have you ever considered the number of lives saved by armed citizens? I doubt it.