Taiwanese are committed, but they are a minority in their own country. About a third of the population consider themselves Chinese, not Taiwanese.
That’s part of the reason they haven’t declared independence.
Two thirds of the rebelling colonists considered themselves British, not American, and remained loyal to the Crown.
In the case of the American revolution, the revolutionaries had more passion for their cause.
One third is not a majority, just a large plurality.
I wonder whose side Bruce Lee would have been on regarding Taiwan. Silly question, but possibly relevant to the passion issue.