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Capacity factor for wind is about 20%, for solar about 12.5%, for nuclear 90%. So let me restate it for you:

The UK's combined annual wind (40TWh) and solar (14TWh) generation capacity is still less than 3/4 of nuclear (72TWh).

Capacity factor aside, unreliability aside, seasonal variation aside, real word aside... you can argue literally anything.

Your numbers sound out of date.

In 2019 the UK generated 51.04 TWh from nuclear and 76.55 TWh from wind and solar.

The last year Britain had a capacity factor for wind that low was 2010. The capacity factor last year was 33%.