You realize if we used only nuclear power we'd have to mine an absolute crap ton of U right? Only a few percent is even usable, U235, so imagine the mega scale strip mining required.

I'm not going to go into why nuclear is dead, but I think it's interesting that so many people think it's so easy to build more nuclear. There's a lot of things to scale of we wanted to do that, and right now the industry is scaling renewables, which isn't going to stop anytime soon, so if you want more nuclear I suggest you become a billionaire and build your own.