WhaleFR8
I don't want to dispute your arguments (many of them can be used against the States as well, if you think about it), but there is one thing very clear in your message: you telling all of this just because you assume that EU will not become a country, at least not in you life.
Tell me honestly, what is the difference for you personally (as FAA pilot) if EU is a joint venture between 27 states or it is a single country? I think there is no difference. The truth is very simple: YOU DON'T WANT EU PILOTS IN THE STATES DOESN'T MATTER WHAT. If EU will become a single country I'm sure you will find some new arguments why EU airplanes should not fly in the States.