While I think you are accurately describing how people do/would react, the "big deal" you describe killed, injured, or caused adverse health effects for exactly zero people. It is possible that these are inevitable outcomes of human psychology, but a more rational world would have gone full steam ahead on nuclear power, even after all of the events you describe. A Chernobyl level accident every single year would have killed fewer people (by a few OOM) than particulate emissions from coal, and that's completely ignoring any climate effects.
Our societies risk tolerance with nuclear is literally orders of magnitude disconnected from how we treat risk from any other source, and as a result we are all poorer, less healthy, and have injured the environment to a dramatically greater degree relative to a pro-nuclear alternative timeline.
>a more rational world would have gone full steam ahead on nuclear power
Nuclear is not perfect, it has some drawbacks that totally justify not going "full steam ahead". Even if it is the cleanest energy possible and 100% safe guaranteed, it is also very concentrated (at least for now) that makes a plant shutting down for repairment/manteinance a problem, it is expensive to build, it takes forever to increase capacity, it creates dangerous residues, it is not very modulable.
> and have injured the environment to a dramatically greater degree relative to a pro-nuclear alternative timeline.
France is having a problem to install green energy, because their nuclear capacity is so big. The alternative pro-nuclear timeline might be using fossils as the modulable part forever by blocking solar and wind installations.
>and as a result we are all poorer
How? Nuclear is safe, but it is expensive. And it almost naturally lead to monopolies and oligopolies due to their size and complexity, allowing owners to have pricing power. In fact, the economics of building a nuclear plant don't work unless a state subsidizes (i.e. extra costs you won't find in the utility bill, but hidding in your taxes, ask the french) its build and insurance costs.