This is a fallacious argument though because it ignores all the meddling US does in Taiwan. Back in 2014 there was a serious plan to resolve the problem. China offered Taiwan to have representatives in the mainland government, while keeping an independent military and local governance.

US ran a color revolution in Taiwan in response to that much the same way they ran one in Ukraine. US also spends billions propping up separatists in Taiwan, and has been meddling there since WW2.

Despite that, the sentiment among the people is starting to change, People are currently protesting Pelosi outside her hotel https://twitter.com/lixi_sui/status/1554496501975601154

What Taiwan independence means in practice is Taiwan being a puppet state of the US that it will use to undermine China and then sacrifice the way they did with Ukraine. Not sure how that's in the interest of people living there.