China's official doctrine is also that Taiwan is a part of China, and the status of Taiwan is purely an internal affair.
What it IS, is a grievous insult to our insistence on being the last word in international affairs.
That's not a great look, and will probably eventually end with our allies either defeated or heading for the exits.
Being a reliable ally seems like it'd be pretty important to self-defense. China has a pretty big population, it's unified, and may have the patience to chip away at things and outlast us.
> What it IS, is a grievous insult to our insistence on being the last word in international affairs.
I suppose it's always an option to withdraw and leave our allies become tributaries of the new empire. Maybe we can eventually become one ourselves and our grandkids can gave peace under the emperor.