Yeah let's ignore the fact that a romanian is totally different than a german. While people are "the same" and/or "equal" at some levels, their nationality, ethnic background and heck their enviroment where they grow up shapes them into being different, special, unique and interesting.
The real goal of EU should be to bring such people together so they can share ideas, opinions and customs. When everyone is "the same" it's a dull world, one optimized for business and not for living.
There is nothing more "european" than for example a romanian marrying a polish women and having a kid, kid who get's to experience both cultures and who learns double making him a better individual than his parents!