0: https://en.wikipedia.org/wiki/Cost_of_electricity_by_source
If you still buy the same brand of 4$ bread made from exotic imported ingredients and a non-bio-degradable packaging that needs to be stored for thousands of years and can only be bought in 2 Ton Loafs from a government-owned centralized bakery that hasn't baked bread in years, and requires a nuclear physics degree to be sliced.
Instead of buying the 1$ Bread that is currently produced in high quantities, can be bought from your lokal bakery, has bio-degradable packaging, mostly local incredients, can be baked by any engineer and bought and cut by private individuals.
Then I think that could be called nostalgic at best. It certainly doesn't speak of economic literacy.
The "Dunkelflaute" is extremely rare [0].
Just look at the data: https://ourworldindata.org/grapher/electricity-production-by...
My top comment was "we need both" and the reply literally two messages down is "no. Nuclear bad." I give up.
Because, nuclear loses according to all of these metrics, for a start:
1. the cost of energy produced.
2. operational flexibility (ability to follow demand).
3. operational cost (the average nuclear plant in the US employs 750).
4. project risk
Pretty much everything beats nuclear on 1, 3 and 4 while gas turbines, batteries and hydro beat nuclear on 2.
It doesn't even win on the fuel cost metric, given wind turbines and solar PV have zero costs in this regard.