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)
Free Schengen movement that you germans fought so hard for. Its nice only if you siphon talent from the eastern part of EU and poorer parts of the world (where same brain drain logic and morality applies), but when people go to better places suddenly its an issue?