However, it's becoming increasingly clear that the US is shifting away from the One China policy. That shift is deeply alarming the Chinese government. There doesn't seem to be anyone in American politics who is capable of pressing the breaks, slowing down the drive towards confrontation, and reengaging in real diplomacy with China.
In the end, the belief in the US that there will be a show-down over Taiwan is likely to become a self-fulfilling prophecy.
There is only one external event - an event that takes place outside of China - that can seriously disrupt the CCP's rule over China and that is Taiwan successfully declaring independence and international recognition.
It would be a humiliating loss of face for the CCP and would probably be followed by a desperate reshuffling within the party and perhaps even a civil war. The CCP is strong and rigid, but like ceramic, not like steel. Their only mandate rests on China's continued economic and diplomatic success. Taiwanese independence would be the nucleating particle for an explosion of domestic unrest and chaos.
Honest question: does it have to be? Couldn't they sneer it off and keep doing what they're doing: claim it's a rebellious province they're too busy to deal with?
Ridiculous.
The US has to come to grips with the fact that its power is limited, and that it must seek accommodation with other powers. If it doesn't come to this realization, we're all in for a very bad time.
Making "accommodations" over territory is what started World War 2.
John F. Kennedy didn't think so: "Above all, while defending our own vital interests, nuclear powers must avert those confrontations which bring an adversary to a choice of either a humiliating retreat or a nuclear war. To adopt that kind of course in the nuclear age would be evidence only of the bankruptcy of our policy--or of a collective death-wish for the world."[0]
> Making "accommodations" over territory is what started World War 2.
First, not everything is Munich 1938, and it is very dangerous to think that it is, because it prevents rational diplomacy. It's the sort of thinking that was used to justify the American military intervention in Vietnam. It's the sort of thinking that might cause a war over Taiwan.
Second, Taiwan was legally a part of China, and it has never officially ceased to be so. The PRC is recognized as the legitimate government of China. The large majority of people in Taiwan no longer want to be part of China, but people on the mainland believe very strongly in the territorial integrity of China and are not willing to see a part of China permanently, officially severed from the country. This is an extremely delicate issue, and simply telling the Chinese to go stuff it would be very ill-advised.
0. Kennedy's "Peace Speech": https://www.jfklibrary.org/archives/other-resources/john-f-k....
Funny, from this side it looks like the opposite: the US is shifting towards greater recognition of Taiwan because China amped up its rhetoric about reunification.
China's reaction to this has been to reiterate its long-standing position, that it favors peaceful reunification but does not rule out military force as a last resort, and to increase military drills near Taiwan. China has been reactive here. For example, it held large military drills after Pelosi visited.
A lot of these developments are driven by American domestic politics, with the two parties competing to brandish their anti-China credentials. That drives then towards increasingly provocative actions, with little thought about the larger consequences of heading down this path.
The other element driving the shift in American policy is the fact that the naval balance of power in China's immediate periphery is shifting. The US Navy is still much stronger overall, but it may no longer be able to defeat China 100 km off of China's coast. In a decade, the balance will be even less advantageous for the US. This is a major motive for jettisoning strategic ambiguity, to force a change in Taiwan's status before the balance of power tilts further.
Disagree, tensions were already rising well before that. In particular Xi Jinping made a big call for reunification in 2014, which likely lead to a more vigorously pro-independence party being elected in Taiwan in 2016. Closer cooperation with the US followed from that.