> Hitting someone else to avoid humiliation is behaviour that belongs on the elementary school playground.
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....