Germany are a major net contributor to the Eurp pool.
(in fact, they must be fed up with propping up most of the EU).
If the Euro imploded, the German economy would be self sufficient. The rest of the EU, whose economies are artificially propped up by circulating Bonds and loans, would be in trouble.
Imagine if everyone lost confidence in GBP and decided to cash in their Treasury Bonds ... the Govt doesn't hold the reserves to pay out on them.
GB would be ... what's the technical term ... ?
... "screwed" ??