It's not the litigiousness that makes it expensive. France was producing nuclear power plants at a cost per watt that nearly matches modern China. In fact, the mind-numbing cost overruns seem unique to the US.
Here's a Nature article about it:
Seems to me like it's more of a story of corruption than of over-regulation
That might be somewhat true but Flamanville was still about $4/watt while Vogtle 3 and 4 (which were built around the same time) were about $15/watt. It's still hard to place France and the US in the same bucket. The US really is uniquely inept at nuclear costs
The UK does the same thing. In fact, its across the entire west. Its almost as if absurd over-regulation is expensive. The Vogtle plant construction for example had to deal with 3 different tranches of changes to the design caused by regulators. Its not corruption, its over-regulation. If it is corruption, it is corrupt politicians intentionally over-regulating because their backers make lots of money extracting FFs.
Flammanville 3 was about €14/W, or about $16/W.
france cant do it any more either. Flamanville was 12 years late and [1] 400% over budget. EPR2 is already delayed and over budget and they havent even started building yet!
UK cant do it either, see hinkley point c [2]
[1] https://www.nucnet.org/news/long-delayed-nuclear-plant-conne... [2] https://www.world-nuclear-news.org/articles/edf-announces-hi...