Well let's see how good that Swiss Model would work as a big normal state, and not as a small tax haven, smaller than the State of Baden-Württemberg living off those surrounding states (siphoning up wealthy people, who got rich in those countries, and also their academics, that they didn't have to pay the education for)
It doesn't hurt that Swiss immigration is very difficult to get through, and they have all that Holocaust money no Nazi or dead Jewish victim is ever going to come claim.