Neben dem Faktor "Taiwan" scheint es wohl in China auch noch ältere Bedenken bzgl. russischer Referenden zu geben:
[...] For example, the news that Russia will hold referendums in Ukraine to annex territory has made some Chinese wary. This reminded them of what they learned in Chinese textbooks: More than 70 years ago, Russia inked a similar referendum in Mongolia, which carved off part of China’s territory. One netizen’s comment on the news represents the mainstream opinion: “It seems the Russians have not changed after so many years.” [...]
- https://thediplomat.com/2022/09/chinas-public-opinion-is-shifting-away-from-russia/
In obigem Text ist "More than 70 years ago, Russia inked a similar referendum in Mongolia, which carved off part of China’s territory" mit einem Link zu diesem Artikel hinterlegt:
- https://thediplomat.com/2015/10/the-truth-about-mongolias-independence-70-years-ago/