Even if we buy the axiom, energy density doesn't even really favour Nuclear. 1kg of silicon wafers produces a 400W panel that makes about 50-180GJ over its lif

Even if we buy the axiom, energy density doesn't even really favour Nuclear. 1kg of silicon wafers produces a 400W panel that makes about 50-180GJ over its lifetime. 1kg of natural Uranium produces 50-250GJ. 1kg of Uranium ore from Husab produces 50-250MJ The nuclear reactor it is burnt in produces about 6GJ per kg over its lifetime (even ignoring the centrifuge array and storage facility). A solar array produces about 1GJ per kg over a 30yr lifetime (but most of it is inert and can be used several times). A wind turbine produces about 5-10GJ/kg. Solar planes exist. Nuclear planes do not.