Do you have a Life Cicle Assessment source for this? This paper [1] quantifies the Energy Payback Time for a modern nuclear plant to be roughly 6 years (see Table 18), and EPT is a conservative metric because it accounts for the total embodied energy of construction (steel, concrete…). For a plant running for 60 years, this means that it will be significantly less than 10%, not 25%.

> solar would have made far fewer emissions

Again, do you have a source? Referring to this, it does not seem so [2]: 6 tonCO2/GWh for Nuclear vs 53 tonCO2/GWh for Solar.

> they are big up front money sinks, creating a sunk investment, diminishing the gamma of future options one might have wished to invest in, or take advantage of, something nobody talks about

True, nuclear has a big initial cost, but this is an incomplete metric. It ignores system integration costs, which grow non-linearly as solar penetration increases. Intermittency forces the grid to over-build capacity and storage, and significant investments are needed to fix it.

> They are perfect for government vanity projects, though, where a lot of money can be siphoned off to personal crypto gardens, repeatedly. Money laundering is likely the leitmotiv behind why you see them being built.

I agree, but this is true of any technology. In countries like Italy and Germany the Government provides >10 G€/year for renewables. It is quite likely that money laundering is happening in these cases as well, as corruption is generally a failure of the Government and auditing bodies, not a property of the energy source.

[1] https://www.sciencedirect.com/science/article/pii/S019689040...

[2] https://ourworldindata.org/safest-sources-of-energy

Confident predictions of the inevitability of renewable diesel at $3 a liter don't add up because diesel is $3 a liter right now. I am literally paying that at the pump. I will actually happily pay more then that if the diesel were actually renewable, but instead it doesn't exist.