As an add on to that - if nuclear energy did start becoming mass produced in the developed world where some modicum of safety/regulation around waste can be assumed, once all of the necessary reactors are built out to supply first world energy needs, at best, those same private developers/contractors will start lobbying efforts in more questionable parts of the world to build these things. Then it be framed as an equity issue - why is the first world preventing the rest of the world from catching up - even though its actually just a plain "it's not safe to build it in a country in the middle of a civil war".
The more likely scenario I would envision is that - under the guise of business "joint venture partnerships in next generation energy" - the technological know how and access to a steady stream of the requisite raw materials to build weapons will leak to more questionable parts of the world.
I think this is rather a silly thing to be concerned about given the consequences of the world either running out of cheap energy or continuing to dump huge amounts of CO2 into the atmosphere. I will roll the dice on your crystal ball being defective rather than the alternative.
My hot take, pretending I was an environmentalist, is that fossil fuel/climate change is the object d'ire for environmentalists only because nuclear ended up not gaining traction. The masses of environmentalists have moved on to a different front of the battlefield for protecting the earth but would return if nuclear gained traction.
It's kind of like now that humans conquered polio and smallpox, the next challenge toward advancing the human race is ridding ourselves of cancer. If polio and smallpox returned, we'd be back to fighting those.
Your baseless theories ascribing borderline malicious intentions on the part of actors like environmentalists and nuclear construction interests are amusing, but I fail to see why they should be taken seriously.
The more likely scenario I would envision is that - under the guise of business "joint venture partnerships in next generation energy" - the technological know how and access to a steady stream of the requisite raw materials to build weapons will leak to more questionable parts of the world.