Actually the great thing about The World Cup is the unabated nationalism of the thing.
Yeah Go USA!!!!. They should be able win this one. Easiest team in the group.
A selling point I hadn't considered. You're right, there's no "We're all Euros together" from the European teams. NO. They are German, French, Spanish, English, and so are their fans. Everybody still knows and loves their own country, which gives me hope for the (lack of a) future for the EU.