The number of Chinese SLBMs, SSBNs, TEL and underground ICBMs, are main source of deterrence China currently have against such an action from the US which I would bet is something they really desperately want to do if there were no consequences on them (these are the king of the easy way out bastards). The US Anglo elites have a God complex. They feel they are well and truly many levels above others. Chinese socialists do not carry any such notion even if some of Chinese culture and people promote a superiority complex, they have zero desire to do harm. Western culture is the opposite. China does trade and diplomacy against a hierachy of civilisation (basically respecting advanced ones and feeling superior to less advanced ones) whereas the west is about conquest, rape, pillage, and plunder back then it was through a gun and now it's through propaganda, brainwashing, and soft power coercion the very thing they blame China of. Everything is justified and they feel absolute entitlement. Not all western peoples certainly but their elites and their policy do reveal all this to all fair minded and well informed observers this is beyond obvious from the colonialism of India to north and south Americas and how those people were treated.
Chinese civilisation and culture is much less inclined to do harm and evil (it is still capable of and has done that) than compared to the West at any point in history. The west just changed the way it conducts this. Well it's easy to change once you've taken everything and you're the new rich that continues to suck the rest of the world dry from talented people to resources.
So yes. The Anglo US elite will nuke China if it can do it safely, feel it's justified and they are in their right because they are both God's chosen special folks and ubermensch while Chinese are Uighur jailing inferiors that are beginning to challenge their right to the entire world and their right do act and do as they see fit to all peoples. A flick of a pen and every standard can be re-interpreted according to their desire. We all see plenty of this.
All the psychological hate and prepping is done. Well for enough people so that no nation would talk twice about it. This is their plan and their ultimate desire to remove challengers. Russia is much less so because it has fewer people and less potential to resist compared to China today but rest assured it would be done in time. China can capitulate and hand over the keys or they continue and struggle against this great evil. The only thing that ensures this path isn't taken is if China stockpiles enough warheads that even detonating them on Chinese soil will ensure global destruction. Russia and US both have enough to do just that and it's pocket change for China to get there within 20 years. At the moment, it keeps around a measly basic deterrence but the number of early warning, AD, BMD, and mobile high yield, long range weapons are enough to make them think twice. In time, they would develop effective counters so numbers and technology must keep pace. There should be no doubt that the US will consider these options. They did it to Japan more or less for fun (could have demonstrated nearby for example rather than incinerating civilians). They considered it during the Korean war and if it wasn't for Soviet nuclear umbrella, they may even have gone ahead with it. Luckily China managed to finish developing the fission weapon then as well.