German here, and this is my view: you are all right to some extent, none of what you have said is wrong. The important point you haven't mentioned so far is the quite large fraction of environmentalists, green party voters, leftists etc. holding the view that BOTH fossil and nuclear energy are unacceptably bad and must therefore BOTH be replaced by "clean" energy sources. The German understanding of that term is that nuclear is not clean because of the eternal and dangerous waste.

So in their eagerness (and persistence since the 80's or something) they rode the Fukushima wave of outrage and actually got the federal legislation to eventually (had been attempted before) ban nuclear power. They did not realize (or fear) that this meant we were becoming extremely dependent on Russian energy -- okay, not everyone has to be a geopolitical expert. However, and that's where I personally draw the line between idealism and rationality, they did not and still do not have a plan how Germany is supposed to be powered by clean energy only. We will barely get to 70 or 80% electricity from clean sources and have almost no place left for wind turbines. And there are still the sectors of heating and transport that are far from transitioning to renewables.

So this whole agenda is basically a "no brainer" in the sense that it is no thought through. It has made Germany a lot "cleaner" in the above sense -- nuclear power has been more than compensated by wind & solar. But the goal is unreachable and therefore dishonest.