Basically unlike the U.S. Switzerland doesn't view background checks and permits as a slippery slope to a dictatorship and implements them effectively.
Meanwhile, in Switzerland, I could have a fully automatic SIG 550 in about two weeks with some paperwork. In fact, the harder part is finding a range to shoot the damn thing at!
"Good Reason" carry permits, meanwhile, are looked down on due to their messy history of being Jim Crow laws. Generally, the "good reason" was "being white" and this was used to ensure that the Black community was disarmed when the Klan rolled in.
The Swiss... since the 2000s
The US has had strict background checks since the 60s
The Swiss.... 1997? Maybe later, the EU forced them to change their gun laws.
The questions stands: more Swiss households have guns than the US, yet gun violence does not exist.
Why?
So for all everyone crows about how likely you are to get shot in America, it's statistically no more likely to happen than the rest of the world unless you're a) suicidally depressed, b) a drug dealer or in a street gang, or c) in a violent relationship.