You're talking about building new, now, with very expensive nuclear and very cheap and performant solar.

Not entirely a good faith argument given the Op's sentiment about the wasted past.

Or, let me rephrase, how much fossils have been burned to date because nuclear got basically snuffed? We can probably express an answer in Celsius.

Trolling/Not Trolling. Imagine if we spent the money we did developing nuclear on photo voltaic and batteries instead. Because seriously we spent next to NOTHING on PV solar and batteries.

The solution is nuclear fuel reprocessing + breeder reactors.

You end up burning all of the uranium, leaving being only short lived isotopes.