Entirely agree with you but... Europe not having a common language is one of the things that holds it back from being a stronger competitor against the US and CN. It's just one of the myriad of other things holding EU back.
Also, why does federalization have to mean the death of cultures? Can't we come up with ideas how to have both?
Since this has now started to slowly change, it's probably not a very good idea to pay too much attention to what they're culturally pushing anymore.