In the end, it means ‘constitutional amendment was not achieved.’ Recall that opinion polls change as easily as the approval ratings for a particular political party. The constitution is codified, and changes require a referendum. (Unlike ‘opinion polls’, all Taiwanese voters participate.)
May or may not, the people of the ROC will one day agree to the position: “We are not China! We are Taiwan, just with Chinese immigrants!” However, the ROC’s constitution, which defines the ROC, does not, at least not yet. When that time comes, I will also be willing to respect the position that the people living in that land have decided for themselves. But at least for now, the most authoritative and reliable reference on this topic is the current ROC Constitution.
As I have explained several times so far, despite their identification with each other as an ethnic community, they do not recognize each other’s government. Therefore, they try to fend for themselves. There is no contradiction here, and that is why their relationship is not just ‘hostile’.
Just as much as the two Chinas, so do the two Koreas. If you were to stop someone on the street in Seoul and ask them, “Should North and South Korea unify?” they might say yes or no. But if you ask, “Are South Korea and North Korea two different nations - you need to think about why ‘nation’ is sometimes used interchangeably with ‘ethnicity’ - with no relation like China or Japan, etc?”, he or she will think you are talking nonsense. Even the armed forces of North and South Korea regard each other’s governments and armies as terrorist organizations or puppets, but teach each other’s people as beings that need to be ‘liberated’. Your worldview - a hivemind where relationships between governments are spread to all citizens - does not explain this.
You imagine that the ‘hostile’ between governments also persists between whole populations. Readers will decide which one best describes Asia, including China and Korea. Unfortunately, according to the number of likes, the parties qualified to judge this debate, the Chinese and Koreans, do not seem to support your argument.