Chinese people know that Taiwan is only what it is because of money pumped by the US into the little island. It has always been the strategy of Western countries to support little states in the vicinity of enemy countries as a way to contain and divide the nation.
I mean, we are also going to brush past the infrastructure development done by the Japanese when they occupied Taiwan during the Meiji period that made it a valuable island to begin with. Or that Taiwan did a better, more equitable and less violent version of land reform than Mao did. And that Taiwan never expelled academics and didn't attempt the Great Leap Forward.
If so, it would sound like the Chinese people are being mislead about the economic history of the island they supposedly claim.