California produces ~40% of our electricity with fossil fuels, and if we switch to electric vehicles, demand will dramatically grow. Plus we need to replace the 9% of power that Diablo Canyon provides until 2024. The situation is dire for CA, a state that is supposedly a leader on climate action, and who is blessed with good weather and economy. Good luck deploying solar+storage in places that have winter and worse economic constraints.
Look at France if you really think politics is not the problem. The vast majority of their power is nuclear. Zero carbon emissions from those reactors. France is the largest exporter of electricity in the world.
Do you think France has some secret nuclear technology, or do they have different physical constraints? I don't think so. I do applaud French politicians for mobilizing against climate change.