Perhaps it’s not the guns that are the problem? Perhaps it’s the overall dysfunction of the US as a country?
So probably it probably not really compareable to how most people learn to handle a weapon in the usa.
You need a permit to buy anything other than a hunting rifle. You can't buy a gun if you have been convicted of a crime, have an alcohol or drug addiction or express a dangerous attitude.
You generally can't carry a gun except when going to and from hunting or a shooting range and you can't have the gun loaded in transit.
It's also compulsory for most male citizens to learn to handle a gun safely, something which the US doesn't require even if you buy a gun.
...as opposed to the US? Do you think you can just buy a machine gun over the counter without any checks in the states?
The US Supreme Court has repeatedly struck down reasonable restrictions for hand guns and rifles though, and seems likely to conclude that modifying a weapon to in effect become fully automatic is somehow OK. This creates a convenient gap which I don't think a reasonable person can believe is a mistake.
30 out of 50 states allow purchasing a gun from a private seller without a background check.
There is simply no basis for the claim that US and Swiss gun laws are comparable.