I'm sure nuclear can be super safe and efficient. The science is legit.

The problem is, at some point something critical to the operation of that plant is going to break. Could be 10 years, could be 10 days. It's inevitable.

When that happens, the owner of that plant has to make a decision to either:

1. Shut down to make the necessary repairs and lose billions of dollars a minute.
2. Pretend like it's not that big of a deal. Stall. Get a second opinion. Fire/harass anyone who brings it up. Consider selling to make it someone else's problem. And finally, surprise pikachu face when something bad happens.

In our current society, I don't have to guess which option the owner is going to choose.

Additionally, we live in a golden age of deregulation and weaponized incompetence. If a disaster did happen, the response isn't going to be like Chernobyl where they evacuate us and quarantine the site for hundreds of years until its safe to return. It'll be like the response to the pandemic we all just lived through. Or the response to the water crisis in Flint Michigan. Or the train derailment in East Palestine.

Considering the fallout of previous disasters, I think it's fair to say that until we solve both of those problems, we should stay far away from nuclear power. We're just not ready for it.