Well, I am not directing any accusations at you. I gave your replies thumbs-ups, because I am not entirely against what you're saying.
But I don't buy this whole "American thought they could win this 不战而胜 (winning without fighting) against China, until Xi Jinping ruined their plan" rhetoric. This is simply false. CPC was NEVER their enemy, China was. The US has no problem working closely and accepting a communist country willing to co-operate. It is the fact that China is becoming too big and strong, that is the rub.
If China was a capitalist country as powerful as PRC currently, the US will form other rhetoric to counter China. Survival of the CPC doesn't matter, what matters is that the US can most easily destroy China with the fall of CPC. 乘火打劫、乘乱行事。
Imagine if China hypothetically smoothly transition into a non-communist country so fast that the US can't even effective respond, do you really think the US will just hug it out with China? NO, if that happens, the US rhetoric will just transition from anti-communist-left to anti-"fascist"-right. The US has already readied their own population to take China out regardless of whether it is a communist-left country or a "fascist"-right country. The only "good-China" is a poor obedient vulnerable-to-American-power China. For that type of China, the US won't care whether it's run by CPC or some right-wing ultra-nationalistic party.