Sorry, but this is bullshit.
First, nuclear never has produced the majority of electrical power in Germany so it most certainly wasn't the "source upon which they built the predominant economy". In fact, it was coal that did the job. Ruhr area's coal and steel industry fueled the German economic miracle.
Second, it was too expensive and too problematic. You really should look up what a massive failure THTR was (and AVR before that). Reprocessing also was way too expensive.
The difference between you - apparently an armchair atomic playboy - and the German anti nuclear activists is that the German ones actually know what they are talking about. Take Klaus Traube. He used to be a leading engineer and then CEO of the German AEG and US General Dynamics atomic energy division. He has been anti nuclear energy many years.