Earlier quoted context omitted.
That's not what's happening here though. China has for years put enormous effort into promoting its worldview on the China/Taiwan issue in every way it can, even though that worldview contradicts the facts on the ground. Taiwan is de-facto an independent country with its own government and military sovereignty, and the majority of citizens of Taiwan are happy with that arrangement. China saying that Wikipedia Taiwan…
Taiwan (i.e. the ROC) is not a "de-facto" country, it _is_ a country. I don't get the feeling you're anti-Taiwan, but I think calling Taiwan a "de-facto" implicitly questions its status and should be avoided.
As of today, the governments in Beijing and Taipei agree that there is only one China and that Taiwan is part of it. That's the "One China" principle.
Taiwan does not assert that there is a sovereign country whose territory consists of the island of Taiwan. Taiwan's government still claims that the Republic of China still exists and that it is the legitimate state in all of China including Tibet, Inner Mongolia, and Xinjiang. This position is accepted by very few countries.
The fact that they are able to act in many respects as though they are the government of a sovereign country whose territory consists of the island of Taiwan is what makes them a de facto country.