Considering that Taiwan has been de facto an independent country for a long time, its easy to see why "forever maintaining the status quo" is the best choice for most people.
Declaring independence from China when they are already functionally independent from China would just be kicking a hornet's nest. The outcome of a war with China would end in either a bloody defeat in which their country would be leveled and their freedoms taken away, or a bloody victory resulting in... the current status quo, just with lots of dead people.
So why would your average citizen desire anything but the status quo? They're already a free country, this question is just asking them if they'd like a war for the fun of it, or their freedoms taken away.
It's even better than that, actually, because it also undermines one of the key fringe ideas that the alt-right is spreading: the independent state legislature theory. If the Supreme Court steps in to override Colorado's decision, it would preemptively utterly destroy one of the tactics the right is planning on: have red state legislatures deny victory to anyone but Trump despite whoever wins the election.