Correct but it's still a deterrent to a conventional invasion even if it doesn't deter a nuclear first strike. Japan and South Korea are nuclear threshold states and that would factor into China's decision making.
Nuclear proliferation is the main reason I am pessimistic about nuclear power as the main global solution to decarbonizing. I don't think a world with 200 threshold nuclear states is a good idea, nor would that be in the interests of any of the major powers, most smaller countries should be aiming for a 100% renewables grid.
It could have been interesting if tying our grids to, and providing some amount of free energy to, non-nuclear states was a concession given for non-proliferation treaties.
Nuclear proliferation is the main reason I am pessimistic about nuclear power as the main global solution to decarbonizing. I don't think a world with 200 threshold nuclear states is a good idea, nor would that be in the interests of any of the major powers, most smaller countries should be aiming for a 100% renewables grid.