The nuclear field's safety record is stellar, at least in the USA, so honestly that's a non-issue, but clean and safe nuclear power has never been cost effective. The controls required to meet current American safety standards are prohibitively expensive
And it was stellar before the regulations were ratcheted up, causing the cost to quadruple.
The reason that nuclear is prohibitively expensive is that we've pushed the safety standards far, far beyond what any rational analysis would require. We could reduce them dramatically and still have the safest power generation technology mankind has ever produced.
In a nutshell, I gave up on nuclear power after investing a decade of my life in it because it's a solution in search of a problem.
Nonsense. There's a very clear problem: clean, safe, cheap, large-scale power generation. Regulations have killed the "cheap" part, in order to add a few more nines to an already-outstanding safety record. Worse, they've so badly damaged the industry that newer designs that are inherently cheaper and safer can't even get off the ground because everyone is afraid to invest in them because of what the NRC might think of to hamstring those as well.
Luckily, it looks like renewables are progressing and might someday be able to replace fossil fuels with clean energy. It'll take a lot longer and be a lot more expensive than nuclear, though. Our insane nuclear power regulations are going to make global warming significantly worse and the economic impact of managing it much greater.