No it's not.

You actually have to build out intermittent renewables much faster than nuclear even for comparable generating capacity due to the much shorter lifetime of the equipment. See Little's Law

https://en.wikipedia.org/wiki/Little%27s_law

China recently signed up to the COP28 pledge to triple nuclear generation. In the same time period, worldwide electricity generation is predicted to rise by 50-100%, so the nuclear share will grow by 50% - 100%.