I doubt nuclear alone would suffice to power our civilization. Of course, you didn’t say that.
Oil has been quite easy energy source enabling complex supply chains and I don’t think we can change them to electric or nuclear powered ones.
We’ve had a horrible track record on waste disposal. Climate change is the result of our failure to dispose of CO2 from burning fossil fuels and that’s also why I’m wary of us dealing with nuclear waste.
Doing the same