Crews are reusable. Crews can be trained.
Training people takes years, and who’s training them in China?
Plus constructing battleships requires ship yards on the coast, which can easily be bombed by the US.
China has never won a naval conflict with any foreign power, they aren’t winning their first one against the US. Heck like I said, Japan would wipe the floors with the just like they did a century ago if the US allowed it.