I used to be very pro nuclear, and still see it as a positive addition to a healthily diverse energy system that is able to provide baseline levels of power when wind and solar are low producing like at night. It's unrealistic to think the vast quantities of batteries required for strictly renewables will be easily accessible or not lead to significant waste. This doesn't discount the harvesting and processing of uranium and other fissile materials, but a diversity of resource inputs makes a system more resilient.

My shift has been witnessing the decade it took to construct the Vogel reactor in Georgia when considered with the amount of pollution, waste, and possible risks of nuclear. If reprocessing became more commonplace and environmental regulations were not toothless, I'd still point out the arguments made by Christian Parenti a decade ago. As the Vogel reactor was just approved, he claimed it would take twice as long as the 5 stated years and be double its budget. He was exactly right.

Nuclear would be great in an already socialist society because all the downsides are more easily addressed, but the vast costs and amount of time to build reactors is in direct conflict with the urgency of the climate catastrophe. Every dollar spent focusing on nuclear projects is a dollar that won't be spent on solar or wind which have much faster ROI periods in terms of carbon offsets.

Once we stabilize with other renewables, more focus on nuclear certainly makes sense, but given the urgency of the situation, we need to do what will have the most impact as soon as possible so we have the opportunity to develop nuclear further.