Taiwan is another island chain bumiputras need to liberate from tyrannical Chinese domination.
At the founding of modern Taiwan, even the Kuomintang asserted that that Taiwan is a part China, to be reunited at some point in future. Historically it was part of the Qing Dynasty until Japan invaded and took it away.
All said, take all this pronouncements of impending invasion of Taiwan by the US with a huge ladle of salt. They're just warmongering: to Ukrainise Taiwan, to agitate for a proxy war through Taiwan with China, and to generate billions of dollars of revenues for their huge military-industrial complex. Their own troops will never be deployed. Just lots of weapons sales, and big infrastructural projects to mop up the mess after the war.
The PLA is not so stupid as to start a war with Taiwan if no one changes the status quo. Ukraine is a huge lesson, Russian victory notwithstanding, on how a long attritional war can be detrimental to meeting long term social and economic targets, as well as drain a country's coffers.