The idea of Europe is dying:
Yes, it is and this sad state of affairs of contemporary European reality has been known and warned against for years. America ought to take notice.
Eropean unity, a point Antony Paged argues very eloquently in his Worlds at War This idea of Europe was furtehr reinforced by the notion of Christendom and of course, the Holy Roman Empire. Christmas Day AD 800 was indeed a remarkable day well worth remembering even as we see that idea getting unstuck.
Ah yes, Christendom..when Almighty God and the Faith that built her was in the picture. The same Christendom that produced the cathedral of Notre Dame and brought the intellectual contribution known as the university system.
There are reasons for things. Europe is, as you say, "getting unstuck" because they refuse to retain their Christian heritage and culture.
But it's worse than just getting unstuck. By losing their Christian roots, Europeans are signing their death warrants.
Check out the EU Constitution. The EU could not bring itself even to acknowledge the continent's Christian heritage in its constitution. That's right....no mention of Europe's Christian roots, however atheistic humanism has been advanced manifesting itself in declining birthrates to the point Europe is not having enough children even to reproduce itself.
So how is abandoning the Faith that built Europe and adopting atheistic and secular humanism working out for the Europeans? George Weigel answers this in his book, "The Cube and the Cathedral, Europe, America and Politics Without God" which I highly recommend reading.
This unpleasant reality "is putting huge burdens on the European welfare state and creating a vacuum into which Islamic immigrants are cascading".