Look at LFSCOE instead of LCOE. The electric grid can absorb a bit of intermittency relatively cheaply, but then you need to account for the system costs.
The systematic bias against renewables and irrational exuberance around nuclear is true across all of those metrics.
Even people that make their living on renewables underestimate how quickly it gets cheap. Jenny Chase, famous for pointing out that people underestimate the pace of solar technology, also underestimates solar technology.
And the skepticism of batteries is similar. I can't tell you how many nuclear advocates have said in past years that grid-scale batteries are impossible because of "physics." Yes literally "physics" that they can't quite seem to cite.
It's just a continual shifting of goal posts as people's systematic bias against batteries are again and again disproven by actual deployments and costs.
From what I've seen, some countries have renewables comparable to nuclear for baseload power, at least for now, but in no country is new construction nuclear cheaper.
Those countries where nuclear does best will be energy ghettos in the post fossil age, as they will be competing with countries (typically sunny places closer to the equator) with cheap renewables.
Those arguments typically assume Li-ion batteries will be used for seasonal storage, which is a completely clown argument.
You can say anyone who makes this argument isn't serious, but that sounds like a No True Scotsman argument.
Solar photovoltaic is so low thanks to its intermittency. The more solar you have as a percentage of the total production the more costly it gets. At the limit of 100% solar its SLCOE is about 4 times higher than nuclear (Fig. 3).
So, the availability and the quality (offshore wind is less variable, causes less backlash and so on) of wind power resources play a big role.
[1] https://www.sciencedirect.com/science/article/pii/S036054422...