Except the Swiss are total arseholes about it, they won't even grant citizenship to people born there or who've lived there for twenty years and speak the language. Many want to cap total population at 10 million, we'll see what happens in June.

And twelve years ago, the Swiss voted to restrict EU FoM for itself and the backlash was instant.

Can't blame the government, this is the Swiss voting public doing their best to be dickheads.

Japan is a bunch of islands, yes it's pretty closed, but Switzerland is a land-locked village with fewer people than London and entirely dependent on trade and the movement of people and money for all they have, and barely a scrap of a language to call its own. English is super common there, probably as a way of democratically inconveniencing everyone.