What is your source for this ? Recent polls show reunification support is still <2%, with about 6% open to reunification eventually but not now.
In 2018, before the crackdown in HK, the reunification support was 3%, with 13% open to it eventually - the events in HK have definitely significantly eroded support for reunification in Taiwan.
I have family in Taiwan and literally don’t know a single Taiwanese person that wants reunification with the PRC.