I never heard anyome complain, quite the contrary...
Why are you so happy to be a colony, lol?
What you are saying is insane.
Germany had overtaken the UK in terms of GDP, by like 1900. It had the world's second largest economy for quite some time. During its occupation of Europe ('41-'45) it had an economy basically equal to America.
Beyond the Big 3 of Krupp, Bayer, and IG Farben - you had a dozen other world leading companies. Siemens, Daimler, BMW, AEG, Zeiss, Rheinmetall, Bosch, etc.
Why do you want to give America credit for what was basically already there?
America does not equal capitalism, and that's exactly what allowed the FRG to overtake the Communistic GDR.
Have some pride man.