Right, Columbia class would probably eat up much of the naval shipbuilding resources. It kind of has to be done at this point since Ohio class is falling part. But given their submarine building resources, VA class will be down to 1 a year if staff gets pulled to build Columbia class. And of course, the next generation land and air launched ICBMs are also likely to magnitudes more expensive than the previous generation.Which is a net win for China. The US nuclear arsenal is way too big and sophisticated for simple deterrence use. And all that counterforce, decapacitation strike and tactical nuclear warfare ideas are delusional.
China needs more nukes for several reasons but it seems the biggest benefit of its nuclear modernization will be the US wasting hundreds of billions on its already oversized and over sophisticated nuclear arsenal.