Don't think its a case of holding back for some strategic reason, most developed countries have been pouring money into fusion research for half a century ,perhaps it is just undoable, every added milisecond of fusion temperature sustained and contained is reported in the scientific journals add nauseum.
I do think national energy production should be taken back under government control though, so should a few other strategic industries for that matter.
I believe one of the darlings of the green movement came out and said openly recently that we should start building fission plants toot suit as they say across the water,
Loads of dosh been spent building these gas turbine generating plants and they will have a very short lifetime, tiz either Nuke or open up the coal mines again and figuring out way of burning it clean, after all we are sitting on billions of tons of the stuff