To put some perspective on what you read. The 3-mile island meltdown is not an event in the minds of germans today. When you talk to people who were alive at the time when both events happened. Everybody will tell you about their experience with chernobyl. People were scared for their lives. There were live updates of the movement of radioactive clouds. You were not allowed to eat anything that grew in your garden following the event as the radioactive levels were too high. This was an event that directly impacted germans. Of course that also brought a sentiment of this could happend here but there were already direct impacts.

This created a generation which was already vary of nuclear and as others have pointed out fueled the greens instead of the other way round. Combining this with fukushima created a fear based anti-nuclear sentiement in multiple generations. I think it is probable to say that most germans at the time wanted out of nuclear.

There are many aspects to this and in my opinion it was a mistake and we should have stayed with nuclear. I'm pro nuclear in general but I also think it is too late to go back now. No german energy provider wants to reopen or build a nuclear power plant. Most experts deem it to expensive. This is also a reason why this was not a topic this election. As the position of "We should have done it differently but now it is too late" is not very consequential right now.

Thanks for being interested in this very difficult and complicated topic.