Donald Trump on the EU: "You look at the European Union and it’s Germany. Basically a vehicle for Germany."
This is very crude, but basically true. The EU and the euro do help Germany enormously by enabling exports while being catastrophic for the South.
Trump sounded like Nicholas Ridley, a British cabinet minister who had to resign in 1990 after saying the proposed Economic and Monetary Union as "a German racket designed to take over the whole of Europe". He went on to say that giving up sovereignty to Europe was as bad as giving it up to Adolf Hitler.
Germany leads Europe, not because Germans want to but because somebody must and no other country can. Germany's attitude is 'tie me down before I kill again.' Germany sees Europe as an answer to the German Question (how to unite Germany while avoiding conflict with or domination of their neighbours), just as France sees Europe as a substitute for the Napoleonic empire.