Nuclear is the worst possible option to fill said gaps. Nuclear reactor need to run at a mostly stable output permanently, they are slow to react to changes and can’t be switched on or off at will.
You could use them to generate a stable base power level, but that’s the opposite of what we need. It wouldn’t change anything regarding the need of energy storage.
The best option currently as a gap filler is gas cause it can be turned on or off in minutes when needed.
Not keeping up with demand is a self-made problem. Multiple EU countries already have multiple days a year where they use 100% renewables.
Yeah no, that’s just plain wrong. Russia, at the very least, is committing cultural genocide if not much worse. Ukrainian families get broken up so their kids can be better indoctrinated.