Since the financial collapse of 2008, Americans of all political persuasions have been frustrated both by the tepid recovery and by the political dysfunction that seems to get in the way every time the economy looks ready to turn itself around. But there’s another region where recovery has been even weaker and political dysfunction arguably even worse. Europe has faced its first major economic crisis since its post–Cold War integration and its subsequent adoption of a common currency. The continent — long admired by American liberals as the home of a more just social order — has embraced fiscal austerity to a…