And largest navy, airforce, and missile capabilities in region with A2D2 bubble to support. I'd like to see any security analysis from last few years that suggests US can divert enough assets in theatre to rival PRC, especially as gap projected to widen with time. Literature in last few years is exactly US+allies worrying because they can't concentrate enough forces in region. It's fascinating how PRC is paper tiger advocates have to draw on outdated facts or three gorges memes to deny reality. Like TW having capability to destroy Three Gorges that require bunker busters larger than any conventional missile can carry. They don't.
Also PRC won vietnam strategically, the kind of victory that matters. Wars are beyond K:D ratios. Plus fought US/UN, USSR when both were nuclear powers and PRC agrarian shitshow and still managed to secure strategic objectives, all of which less significant than TW, while PRC was more ill-equipped. There is 100% chance PRC would fight prolonged war over Taiwan, because it has never not fought over redlines. And like Ukraine, very little chance of substantive outside support simply because everyone else is as or more vulnerable.
Sanction proof = unlike RU, or most PRC trade partners, PRC is comparable to US in terms of trade dependency (not much). And unlike regional US partners, sufficient in domestic resource production to weather war economy for a long time. As well as have enough supply chain dependency over strategic resources like rare earth and leverage over threatening east Asia semi to deter prolonged war at least a few decades. If there's a broader war in East Asia, I would bet against everyone. Including US. Difference is, as with Vietnam, PRC has track record for accepting existential fights.