Hungary and Poland were under the Soviet boot, but a generation later they are going back to undemocratic and authoritarian governments. Eastern Germany was under the Soviet boot and they have far more neo-nazism than Western Germany who wasn't. So the 40 years seem to have made some long lasting damage instead of fostering as strong "never again" attitude.
On the other hand 12 years of nazi government have left a much more permanent "never aggain" against big brother in Western Germany. To my knowledge it's the only country on the planet where citizens' resistance made Google to stop deploying Streetview (where it might well be debatable whether Streetview is the worst big brother thing. But sometimes relatively minor issues raise big fears and hit big resistance, as it seems to be with GDPR for small US businesses)
That wasn't my point, though. It was that now only governments are allowed to gather and keep this data. Granted, the breadth of what's available to them may not be as great if they're mainly recording traffic with no access to corporate servers, but even that access can be periodically arranged given sufficient desire.
That just isn't true.