That's for the nuclear industry to figure out. But the fact that companies from different companies originating in entirely different countries suggest that it's a problem with the tech itself.

The hard truth many just don't want to admit is that there are some technologies that simply aren't practical, regardless of how objectively cool they might be. The truth is that the nuclear industry just has a very poor track record with being financially viable. It's only ever really been scaled through massive state-run enterprises that can operate unprofitably. Before solar and wind really took off, the case could be made that we should switch to fission, even if it is more expensive, due to climate concerns. But now that solar + batteries are massively cheaper than nuclear? It's ridiculous to spend state money building these giant white elephants when we could just slap up some more solar panels instead. We ain't running out of space to put them any time soon.

Sometimes it's documented but often I'd say it's a selling technique that works for any big infrastructure project. You give a rather low first cost projection, governments decide let's do this and after a while you correct the price up. First, people say: well that is to be expected the project shouldn't fail because of a little price hike. Then the price gets corrected again and then the sunken cost fallacy kicks in. now we are to deep in and we have to pull through. And so on. And you probably can't get price guarantees for such big projects cause no one would make a bid. It's a very flawed system. I'd like to know how often solar or windpark projects get price adjusted?

Also 10s of billions is still insignificant for any power, transport, or healthcare infrastructure in the scheme of things -

Bullshit. If you can get the same amount of reliable power by just slapping up some solar panels, wind turbines, and batteries, then obviously the cost is not insignificant.

That sentence shows that you really aren't thinking about this as a practical means of power generation. I've found that most fission boosters don't so much like actual nuclear power, but the idea of nuclear power. It appeals to a certain kind of nerd who admires it from a physics and engineering perspective. And while it is cool technically, this tends to blind people to the actual cold realities of fission power.

There's also a lot of conspiratorial thinking among the pro-nuclear crowd. They'll blame nuclear's failures on the superstitious fear of the unwashed ignorant masses or the evil machinations of groups like Greenpeace. Then, at the same time, they'll ignore the most bone-headedly obvious cause of nuclear's failure: it's just too fucking expensive.

Well if we had no alternative I would agree with you and I would be okay if we had to subsidize nuclear (which isn't emissions free due to the mining and refining of uranium bye the way). But if a country like France, which has a pretty high rate of acceptance regarding nuclear, can't get it to work, who will? Apart from maybe authoritarian countries. Just think about the amount of plants we have to build to create a significant impact, if hardly any plant has been built in a relative short timeframe. I'd say put money in research yeah but focus on renewable, network, storage and efficiency optimization for now.