What would the west do if China grabbed a chunk of Siberia?

Only that’s not logic, that’s ignorant chest-thumping. If half of the population of China were to disappear in mushroom clouds tomorrow, it would mean every major city in China and most of the minor ones were consumed in those mushroom clouds as well. China as a nation or a civilization in any meaningful shape or form would be over. Before you think China has a snowball’s chance in hell at winning a nuclear exchange with Russia, I posted this in another thread in GD just yesterday: