Nuclear does have a cost problem in the sense that costs have not really dropped since forever, which is not boding well for a technology (unlike, for example costs for solar). So I can accept people arguing that way - but could also still argue for nuclear as an expensive baseload technology.

The whole taxonomic discussion is a distraction anyway. We are long past some simple carbon reduction path making a dent (and also coming at high costs), so in the end will be about mitigation and even attempts at geoengineering - as usual politics are way behind the curve.