If china's gone crazy enough to use nukes then the goal is national survival.
If their crazy enough to use nukes that also means the end of china because we have far far more then they do.
And then what happens when Russia sees our depleted nuke arsenal (in the best case of dealing with China), and decides to risk making a push for the Baltics, because they already have more nukes than us and now would have many more than us?
I see little way a conventional war with China doesn't end up going nuclear as one side or the other gets desperate for results/victory. And once we've engaged with China, Russia won't hesitate to move on Eastern Europe, and possibly even assist China in the Pacific.
The only way we 'win' a war with China, without leaving ourselves open to other actors making their own moves, is an overwhelming first strike against the nuclear forces of them and their allies (NK, Pakistan, and Iran).
There is no will for that in the US right now, and frankly I doubt there would be even if the CCP pulled off a Pearl Harbor 2.0; too many businesses and elites have too much to lose by letting us go to war with China, no matter what aggression they undertake.
We have people apologizing for calling Taiwan a country, and the CCP owns POTUS and much of the Dems; why in the world would I still have any confidence that the elite of this nation would allow our military to do anything against the Chinese unless they hit us first, which they aren't stupid enough to do.
People keep banking on our military, and on the CCP collapsing from demographic/economic issues, instead of taking a sober and somber look at the realities we are currently facing domestically and internationally.