The Merkel government then stopped it, then resumed it again.
And now Greens try to claim it wasn’t their fault, despite it being the foundation of their party since the mid-1980s.
It was reverted as soon as the CDU took over, and reverted back after Fukushima. But it is originally a "Green" idea and ideology, and it remains to be one today (see: Bavaria trying to get their plants recertified after 2022, because of the gas situation, and Berlin - staunchly Green - fighting it.)
Read up on your history once more. Schröder/Fischer were both voted out of office in 2005.
Let's respectfully disagree here.
Anyway, don't let this cloud your judgement. There are economic issues here, and economics concerns trumps environmental, in Germany and elsewhere. This would have happened even if no anti nuclear campaigning had ever taken place.
In fact, it might even have happened faster if there wasn't also a big push for renewables, which have taken a lot of resources. The people really responsible should answer for this and not some convenient scapegoats.
Yes, there was some anti-nuclear sentiment after Fukushima which made for an opportunity. But it was long in the running. Both the SPD and CSU/CDU had interests here. Lots have been written on this in established media, should you wish to delve deeper.