It's far too expensive for that with how cheap renewables are making electricity. France is already struggling with that.

Technically yes, but also no. The European electricity market have way, way to many rules and caveat to draw any conclusion, especially France with ARENH and other distortions.

It's probably too expensive, because the best way to make nuclear cheap is to build it 'at scale', and here I mean, continuously. You need a company that will get a reactor out of the ground every year or so, continuously, to avoid loosing knowledge and build upon failures or success.

I know three persons who work or used to work directly with nuke plants, one my age who is currently working in getting the newest french reactors off the ground, and two who are friends of my father, one who finished his career in China, and the other became a submarine welder. From the discussion I've listened to, and especially from the welder, the technical requirements are very high, knowledge and techniques have been lost and making nuke plants correctly nowadays on the first try would be a miracle (he is also very skeptical of the first wave of french reactors), you need to iterate and build knowledge, which isn't cheap.

Sure wish the UK could get some of this cheap renewable energy you're referencing.

That turns out not to be the case.

France is not "struggling", they are once again the #1 electricity exporter in Europe, with low-electricity prices, reliable supply, huge profits, and world-beating CO₂ emissions.

Their newest energy roadmap has drastically reduced renewables build-out, while at the same including first 6 and then 8 new EPR2 reactors.