The "old continent" as I like to refer to Europe has always been a cluster of peoples, so the events taking place today are nothing new.

Once upon a time it wasn't just wealth that was the driving force, but also "expansionism" as far as territories go.

The one thing that united many peoples was language along with the cultural similarities that the lingual aspects naturally brought about.

Unfortunately "politics" as we have referred to it over the past century and a bit has defined some "borders" that are not necessarily in line with the reality of the peoples in Europe, and there are some crazy totally non logical borders out there.

Europe is changing, as far as the population goes and some of the above mentioned groups may take "advantage" of this, however in the long run, as history has proven Europeans need to be united if they expect any form of safe and prosperous future.

Not all peoples of this world respect human rights and many a people of this world are still obsessed with "power over others", so the dangers of what was yesteryear are still thriving on ignorance and inhumanity.

This century shall definitely see some changes happening in Europe and all of the points that you have brought up are in fact weak links as far as the peoples of the old continent go.

Europe and "The EU" need to adapt to the needs of their future otherwise they are doomed for a bloody rerun of what has been seen and lived through in the past.

This is of course if we look at the grand picture of things and not on national levels.