Saying humanity should never use nuclear energy just because someone might shoot a missile at it is incredibly stupid when CO2 emissions are causing climate change.
https://www.solar.com/learn/what-is-the-carbon-footprint-of-...
That link is also using an average including older reactors that require more highly enriched uranium (enrichment is energy-intensive), newer designs that can run on natural or low enrichment uranium can do 1.31g/kWh:
https://www.frontiersin.org/journals/energy-research/article...
(0) https://co2coalition.org/2024/05/21/coals-importance-for-sol...
(0) https://www.researchgate.net/publication/335083312_Why_do_we...