How about nationalize all Uranium on planet Earth thereby resolving fuel costs only to the cost of extraction, and building 1000 CANDU heavy-water reactors in Northern Ontario in a 10x100 grid - building only 3 variations (proven models) with very simple designs, and then simplifying the fuel cycle process dramatically. The French do 85% of their Electricity on Nuclear because they built a bunch of identical plants a…
No need to nationalize the uranium (I am quite skeptical that would reduce the "massive overhead of bureaucracy" you mention), but other than that your plan would indeed solve the problem (to the extent it is a problem). The problem is that the people behind this don't actually want to solve the problem. They just want to use it as an excuse for a power grab.
Australia, Russia and Canada have most of the known deposits.
If the market price of Uranium is literally $0, well, Russians get nothing directly out of digging it up.
The grand concern would be, once something like this got going, there would be copycat entites in places that are not ready for it, i.e. China, Russia, Iran. Maybe China is today, but they are always teetering on revolution, or some kind of massive upheaval. There's no place like Canada for a vast expanse of boring, stable, calm, political stability and basic (but never exceptional) operational effectiveness.