I think this is a bit revisionist at best. One of the defining characteristics of post-war West Germany was the embracing of free markets and de-regulated business. The most influential post-war Economics Minister, Ludwig Erhard was a fierce proponent of liberal economic theory and laid down the foundation for the decades of strong growth that West Germany experienced. He flatly rejected calls for subsidisation of industry and threw out all the price controls that had been in place.
In contrast to the UK, which went the other direction after the war and nationalised and socialised so much that it's economy was moribund by the 1970's, in complete isolation with the emerging powerhouse that was the West German economy.
Sure, the Germans have had a problem with unemployment, and youth unemployment in particular, but they enjoy a high standard of living and a stable and prosperous economy. And the unemployment rate has been dropping since the conservative-minded government has been in power. It is now lower than most US states.
So I would contend that Germany, particularly throughout the period from 1950-1980 was following a classical liberal economic philosophy more closely than just about any other Western country, the US included. And the results showed. Though I would say it was more Austrian school based than Chicago.
I also don't agree with your assertion that socialism is required to keep an industry going. For that you just need an export-led manufacturing sector, good technical training in schools, and to keep the finance sector in it's place, instead of being allowed to dominate the economy and thus wield political power.
Interestingly enough, the Germans haven't had a housing crash because there was no housing boom. And that's because there was no attempt to change the ownership levels amongst people who didn't own a home.