Think you have confused the issue a bit there Deske1 !
A primary reason for rejecting the proposed EU constitution is that individual countries are frightened of the possibility of losing their sovereignty and handing over complete control to a monolith in Brussels that is every bit as corrupt and useless as the UN.
As a pilot, once you have an EU passport and an EU acceptable licence you can apply for a job anywhere within the EU. Just a couple of problems though, most countries like France, Germany, Spain, England etc. etc. will expect you to be able to converse in their language as the Air Law exam, for example, will be written in the national language, as will all the other exams you may be required to sit to initially validate and subsequently upgrade your licence, not to mention that most of their administrative correspondence that you will have to deal with will also be in the national language.
From the employers point of view they want you to be able to slot right in with a minimum of fuss and integrate fully with your colleagues, if you can do that and you have relevant experience you then have to show at the interview that you are the best choice.