Right, there is never any legitimate justification to build new nukes.
At the moment, existing nukes can still be operated at competitive marginal cost, neglecting original capital cost, and carefully not counting continuing subsidies in opex. As renewables costs continues on down, even just nukes' subsidized opex will be unsustainable.
Geothermal is not having a heyday because it depends on the same sort of expensive-to-operate steam turbines as nukes do, so is uncompetitive.
Anytime steam turbines have to compete with no steam turbines, the steam turbines tend to lose.