Those "diplomatic issues" were the entire point of my post. And my argument is that they're going to get worse, not better, over time, as China's regional and global position strengthens.

I meant "broadly agrees" in the diplomatic sense. That's the main sense that matters for Taiwan. The US is the only country with any real measure if de facto support for Taiwan, and it is pulling back from Asia.

This article lays out the strategic logic in more detail: https://nationalinterest.org/article/say-goodbye-taiwan-9931

(The author, John Mearsheimer, is a leading international relations theorist. In 1994 he may a similar prediction when Ukraine gave up its nukes: he said they would eventually be strategically vulnerable to Russian aggression)