I’ve directed the Master’s and Bachelor’s thesis of several Chinese students here in Europe, and literally all of them except one have returned to China because life there is better. The one who stayed, personally told me that he used to be Chinese opposition, but after some years in Europe seeing the shitshow we have and the impending rise of fascism, he’s not as critical of the Chinese government anymore.

Your sample is biased: you’ve only spoken to the Chinese émigrés, so you’re suffering from survivor bias.