I think the problem is the historical fact that cost of negative externalities of nuclear projects don't get built into these projects are borne by tax payers a

I think the problem is the historical fact that cost of negative externalities of nuclear projects don't get built into these projects are borne by tax payers and people with significantly disrupted lives in very short durations. The two big meltdowns Fukushima and Chernobyl have left large areas necessarily depopulated and certainly have raised cancer risks. No one seems to have a realistic end of life plan for nuclear sites and the next generation inherits the problem. If we mandate nuclear plants buy enough insurance cover to deal with Fukushima/ Chernobyl type disasters, they would likely be completely uncompetitive with other power sources.