I feel like this is a prime example of someone failing to update their beliefs with new information.
For decades it would have been a reasonable position that governments should override political objections, embark upon mass nuclear power programs, and try to drive costs down through economies of scale and process improvements over time.
20 years ago it was arguably a correct and very strong position to take?
10 years ago, still a reasonable-seeming one?
By 5 years ago, nuclear had probably missed its chance. Most of us had probably not quite grasped that yet.
Today, anyone arguing this just needs to redo their sums with up-to-date numbers and they'll see the impossiblity of their argument. Nuclear is done. Baseload business models are done. The market has chosen a winner, which is mass deployment of wind and solar.