Earlier quoted context omitted.
Fukushima was a triple meltdown after total inundation of 1960s-class reactors. The short and long-term death-toll from radiation was quite literally zero, as reaffirmed by UNSCEAR just last month [1]. I don't think the "boundlessly large nuclear accidents make the technology untenable" argument really holds water given this kind of experience. [1] https://unis.unvienna.org/unis/en/pressrels/2021/unisous419....
You cannot demonstrate the safety of something by pointing at an example that did not go as terrible as it could have.
I cannot see how this view can be justified.
But if you want to take this view, consider this hypothetical worst case. Imagine we push forward with wind, solar, and batteries, but human rights issues related to manufacturing with slave labor, corruption, mineral shortages, grid instabilities, and land usage issues that emerge once these technologies reach world-scale cause enough trouble that we just keep on operating large amounts of fracked fossil gas to the point that climate change hits the bad predicted scenarios and all the bad events of climate change happen anyway. Isn't that hypothesized worst case just as valid as this worse-than-Chernobyl nuclear accident you're holding above our heads?