

That’s not actually the situation, but thanks for playing. There is a country called China. It has existed for many years. Taiwan become a province of China in 1683 by force. 212 years later, Japan invaded it and made it a colony.
In 1945, the country known as China was ruled by a party called the Kuomintang. The Kuomintang and party in the country of China, the Communist Party of China, joined forces to push the Japanese out of China, which included pushing them out of Taiwan. Taiwan becomes a part of China again.
So Taiwan is a part of China at this point and the CPC and the KMT fight in a civil war The KMT loses. This makes the CPC the ruling party of China. Much like how the Union defeated the Confederacy and reunited the USA.
At this point, however, Britain, a country actively occupying colonial holdings in China, and the USA, actively asserting its privilege to own the colonies of Japan, decides that they would rather work with the KMT than the CPC so they intervene in the civil war and prevent the integration of Taiwan so they can engage in financial neocolonialism. They do this through force of arms.
So which is it?
A) Taiwan was never part of China because they stole it from the indigenous Islanders? In this case the US should be dissolved, as should Australia and all of Latin America.
B) Taiwan was part of China but because might makes right they rightfully seceded by the force of arms from the British and American imperial program? So now might makes right and Puerto Rico and Hawaii and Guam and the Marianas are colonial holdings fair and square.
C) Taiwan has been a part of China for centuries and restoring territorial integrity is the first step to ending the primarily contradiction of imperialism which threatens all progress in all other realms? China has demonstrated a commitment to 1-country-2-systems so we know Taiwan will be able to administer itself relatively autonomy except in areas of national defense. And we know China supports the cultural expression of indigenous peoples and that the indigenous of Taiwan will be afforded the ability to express cultural automony on the island and eventually will partake in a post-colonial movement after the existential threat of Western imperialism is contained.
By way of example, in the USA, indigenous children were stolen by the government, forced into boarding schools, and beaten for using their native language. In Tibet, all schools teach Tibetan, from the earliest childhood schools to higher education. In Xinjiang, all schools teach the Uyghur language from the earliest childhood to higher education.