What about paying to store the (albeit small amount of) long lived waste? What is the cost of permanently, and safely, storing a tonne of very poisonous material for hundreds of thousands of years? And do not say " deep-geologic placement" as there is no geological structure that we know of that is stable and seperated from the biosphere for those periods.
Nuclear power is socialising extraordinary risk and making future generations pay for today's energy.
Yes it can be profitable. But never moral