Keeping nuclear power safe is very easy, you just have to decommission old power plants that aren't up to modern standards. That's all it would have taken to prevent Chernobyl and Fukushima. So why on earth do we build nuclear power plants that are difficult to rebuild? Why did we believe that immature technology is going to be enough for the next 50 years? You need to build more, to replace the crappy old power plants, you need to build more, to expand the fleet, you need to build more, to update previously built plants to a new safety standard, you need to build more, just to maintain a workforce.
It's done all the time with solar power and wind. Build it for 20+ years, if new tech comes out you just replace the old tech once it proves uneconomical.
My personal favorite boondoggles are still housing, internet, electric grid and road maintenance. We really need to put pressure on the job market through fiscal stimulus. That pressure will force companies to wake up and actually do something productive.
Renewables are getting better and cheaper fast and if you have you're not convinced by that, I see no reasonable argument for nuclear.
https://www.reuters.com/article/us-energy-nuclearpower/nucle...
https://www.sciencedirect.com/science/article/abs/pii/S22146...
Think of it this way. If unemployment/underemployment is high then it's like having random people sitting in a bar doing nothing. A government official comes to the bar and sees people doing nothing and tells then what to do. What's being lost by telling these people to do something? The biggest loss is that these people could have done something even better than what the government came up with, however they are in a bar doing nothing, clearly nobody needs them right now.
The question is, does the nuclear industry actually generate jobs that would lower unemployment? Is the type of person that is qualified to work on a nuclear reactor unemployed? I am leaning toward no, I simply cannot imagine the highly vocal trump supporter base being filled with academics in hard sciences. If we are going to do a nuclear jobs program it might backfire because it fails to employ the right people.
All of which is nontrivial amount of investment nobody does where there is unemployment, because it's cheaper to do it in China as the base and subcomponents are already there... (there's also unemployment)
Trap of deindustrialization runs deep.