The CCP can't formally acknowledge Taiwan's independence from the mainland because that would set a dangerous precedent for the conquered peoples living in Tibe

The CCP can't formally acknowledge Taiwan's independence from the mainland because that would set a dangerous precedent for the conquered peoples living in Tibet and Xinjiang. Similarly, the party can't formally recognize and respect Taiwan's right to self-governance short of formal independence because the CCP believes (and is probably correct in believing) that any centers of power within China that are not explicitly subordinate to the party are an existential threat. The party really has only two options - the status quo, or the subjugation of the island.