Energy density is a useless bullshit metric for stationary power.

Produces more waste than almost all of the renewables.

Reliable compared to... ... ... ok, I'm out of ideas, they need shutdowns all the time. Seems to me it's less reliable than anything that isn't considered "experimental".

And it can't work with renewables unless you add lots and lots of batteries. Any amount of renewables you build just makes nuclear more expensive.

They are an interesting technology, and I'm sure they have more uses than making nuclear weapons. It's just that everybody focus on that one use, and whatever other uses they have, mainstream grid-electricity generation is not it.