A reminder: At the beginning of the Common Market, France, Germany and other members pressed for the admission of fascist Spain. This brought about the reaction of the Parliamentary Assembly that appointed a Nazi victim, Willi Birkelbach, to draft a non-binding report on the negotiations. His report set the stage for what the Union was to be, a union of democratic states. Fascist Spain lost its bid, settled for trade agreements, and eventually was admitted once it had become a democracy in 1986.
So the point is that crises generate democratic telluric shifts in the Union. And we are in the middle of perhaps the worst.