Plenty of us remember when Switzerland was not in the Schengen though. This might be good for Americans, who haven't been able to get working visas in Switzerland since EU countries now have priority. But otherwise, I don't see much changing beyond border procedures.

When the neighboring countries become a threat again, they will place high explosives back inside the bridges and mountain passes.

I already pass through Swiss customs when driving in, so it makes virtually no difference to me besides slowing things down at the border potentially.