This Europe is a complicated thing... This Europe resulted from two devastating twentieth-century wars (or one long war, with a twenty year interregnum). Millions dead... cities and some whole countries destroyed. Empires collapsed (British and French) and the rise of new ideologies - National Socialism and Communism, one more murderous than the other. The importation of labor to rebuild (at first... guest workers who are now never going to leave and now into the fourth and fifth generations...). The slow death of Christianity in Europe.... declining birth rates among native Europeans... The institution of quasi-socialism across the continent as a way to keep the masses happy. And finally the EU as some made up entity, with the elites - betters? - ruling over the prols and regulating everything from the size of bananas to cow flatulence. One can't predict the future. The Third Reich had to be defeated before it developed atomic weapons.
… and Austro-Hungarian, German, Russian, and the Ottoman Caliphate.