Except that it is not EU conform. And won't hold up anyway. Everyone knows this.

Some politicians want to market themselves here.

> Then it's down to individual responsibility to observe the norms of one's society.

That's ok, but Switzerland decided to also partake in many EU regulations, including free movement. They can't cherry-pick individual parts. If they don't want special relations to the EU then that's also fine but the benefits will be gone as well. The UK found this out quite quickly too.