The German politicians all want the EU. Don’t be mistaken about that. You haven’t heard a single one say a word against the EU yet, and if any one of them does, it’ll be a fringe politician (and even still, I won’t bet on it). The EU was the idea of Adenauer and his ilk to begin with.
Take a closer look and you might see that the EU has been and is being gradually made in Germany’s image; already started with the social market economy being written into the treaties.