The thing to note in all these articles is the emphasis on 'The imbalance of Nuclear weapon stockpiles between the two countries'.Virtually the entire US populace is completely rabid towards China. They're already foaming at the mouth and chomping at the bit for a total war with the hated yellows, how do you think they'll act once China slaughters tens of thousands of their sailors and troops? Even if it's a relatively pacifist/weak leader in office at the time like Biden, retaliation will be *demanded* by their citizenry, and that will be the only option for retaliation they still have. Do you really think a country that has been so arrogant for so long would react calmly to such an unprecedented, devastating and humiliating loss?
Think about it
1. China doesn't face any technological issues regarding nuclear weapon designs (China has its own designs and access to US ones).
2. China isn't lacking in delivery technology whatsoever. Space Powers don't struggle with that, usually.US indeed has SSBN VLS that are quite hard to prosecute. But China has been improving them too and could develop asymmetric weapons that are relatively cheap and be mass produced with effort ( torpedoes like Russian Poseidon), FOBs, HGVs etc.
3. China can spin up centrifuges and produce more quality fissile materials.
That article is written by AEI (American enterprise institute). Basically, a think tank of/for NeoCons. Neocons are pretty dumb (and dangerous) and very few like them after the mess made by Bush ( He can't paint his way out of that). I dismiss articles from them as they see war One dimensionally.
American policy considers their mainland civilian safety first and then their economy (prosperity) second. Both of this is NOT safe in a war with China.