"It's basically a market of 450 million people instead (in my case) 50 million. Money and Peace, what's not to like?"
Dude, the thread is about the proposed constitution, not the current set-up that you enjoy. Have you read the proposed constitution that you may/may not be living under soon? Therein lies the answer to your question about what rights you may or may not have lost.
My experience in several parts of Europe is that nobody has even read the thing. How can you say anything good or bad about it if you haven't read it?
If you have, GREAT! Again, more power to you if a huge, socialist state is something you want to create!
Here are some "freedoms" enumerated in the Charter of European Rights
Everyone has the right to the protection of personal data concerning him or her.
BUT
Such data must be processed fairly for specified purposes and on the basis of the consent of the person concerned or some other legitimate basis laid down by law.
Everyone is equal before the law.
BUT
The principle of equality shall not prevent the maintenance or adoption of measures providing for specific advantages in favour of the under-represented sex.