Revisionism it is not. It was Schröder’s administration that shut down Germany’s nuclear power plants.

Where is the peace movement and so-called environmentalism rooted?

Pro-nuclear is pro-environment.

The alternatives are fossil fuels and renewables, which are both extremely anti-environment: water power require large artificial reservoirs and create flood risks, wind power kills/drives away wildlife and is almost useless without efficient large—scale energy storage and other methods of power generation, while solar also requires storage and other power generation but also requires mining of rare earth metals.

Of course we could just stop all of our industries to save power. No more production, no more consumption, no more pollution.

It's kind of all of the above. State and non-state actors have leveraged pretty much every movement there is to their own ends: civil rights, anti-nuclear, pro-nuclear, anti-Iranian government sentiment, pro-Iranian government sentiment, even jazz tours in Europe which were assisted by US intelligence orgs in the 20th century.

It's not a 'bad' thing and doesn't say alot about the core movements - it just is what it is.

Indeed. Also Asse was a political decision, against the scientist who found better places to put the waste, but Asse II was close to east Germany. And West German politicians wanted to give a big "screw you" to East Germany, because they also did something similar.

I'm still against nuclear in Germany. I'm fine with Finland doing it.

We don't know what to what fraction that peace movement ran on being propped up by KGB. Those things are not mutually exclusive, genuine protest and getting propped up by a foreign power just for destabilization and giggles.

Just like that Red Army Faction group whose name in hindsight was much closer to the truth than anyone really assumed at the time. At least at some point it clearly was a KGB operation (visits to a certain Dresden office are documented, and yes, guess who was also stationed in Dresden at the time), likely not from the start but quickly co-opted. KGB, as in the service that was built on the experience of how Germany solved their eastern front in WWI through organizing passage from Zurich for a certain dissident.

Yes, those movements were genuine. But they were also directed to some extent. The fictional Tischbier character in Deutschland 83 comes somewhat close to illustrating that ambiguity.