> as dependent on European tourism the way Southern Europe is on American tourism.

We're mostly dependent on other Europeans, the US is not the single highest tourist/visitor in any of the Southern Europe countries. Italy is the country with the highest percentage of American tourists, but even they have more German visitors. Most southern countries have most tourists from the UK, Germany and France, kind of as expected.

If you think about it for a second that makes a ton of sense too, considering the distances involved here, and how cheap flights inside Europe are.