But the Taiwanese government wouldn't be able to ban countries that did business with the PRC without cutting themselves off from most of the world? My impression is that they aren't even willing to discuss their own independence too loudly [1] in order to maintain the status quo.
Interesting how independence actually can mean two things in Taiwan:
https://en.wikipedia.org/wiki/Taiwan_independence_movement
The Kuomintang do not support the island state concept.