This is historical revisionism. Anti-nuclear sentiment in Germany is rooted in the peace movement and environmentalism, with the majority of public discourse starting in the 1970s.
The debate has always been about what to do with the waste. Our government misrepresented the "Asse" as a solved solution for a final repository, even though it was always only a test repository for low and intermediate-level radioactive waste. But hubris or corruption led to one scandal after another, forever tainting the discussion about nuclear waste in Germany.
Everything that follows is just a reaction.
My counterclaim to your unsubstantiated take: Pro-nuclear sentiment is what has been manufactured. Anti-nuclear is grassroots.
You'd be surprised how little price factors into the equation for decisions like this. Anyone that tried to acquire customers as a fresh start-up knows that trust means a lot to established companies.