Well yes, but with renewables it’s a step-by-step process, greening the grid with each small installation going online, and we can start with that right now, the technology is there. Whereas “going nuclear” means having to wait 10 years or more (looking at you, Flamanville 3) for the very first kWh to materialize. I repeat, we don’t have time for that.
Pre-fab plants, small modular reactors or similar ideas are pie-in-the-sky and will remain so for the foreseeable future. The World Nuclear Industry Status Report (lead author Mycle Schneider, nuclear energy consultant and anti-nuclear activist) is an interesting read. Have a look at the “Climate Change and Nuclear Power” chapter.
Another point: nuclear power plants are not nearly as reliable as one might think. According to the “France Focus” chapter, in 2018 the French nuclear power plants had a load factor of 70% only. The reactor fleet had an average of 87.6 zero-output days per reactor, and at one point, 27 of the 58 reactors were down at the same time. I’d call that fairly intermittent…
[Edited since I borked a quote]