Look at real world data. Nuclear power has scheduled down time, something that is totally doable if you have a fleet of reactors.

You certainty don't have anything close to the intermittency of wind and solar. And this is clearly evident in the production graphs.

Real world data says that unless you spend insane amounts on it and then pretend the reactors that shut down decades early due to issues or destroyed themseves don't exist, or are China then something goes wrong and forces a shut down or low output about 20% of the time.

In most regions you can get a lower forced downtime rate for a lower cost with renewables, and then you also get the curtailed energy to feed dispatchable loads. You need the electrolysers anyway for chemical feed, and you need storage to meet variable loads so it's just a matter of which can be deployed faster.

Additionally you get a very long forced downtime when you burn through your Uranium reserves in under a decade by trying to provide current final energy.