I guess you misunderstood my point. I am not talking about Chinese expats overseas or Chinese national traveling overseas.
I am talking about foreign experts working in China. To them, even those professors on a long term contract, China remains very much closed. Again, I know first hand accounts.
Think about it, if a model does not provide global public goods to others, there is no reason for others to support that model because it works wonder for its own constituency only.
Globalization means openness. Under COVID, China has so far given somewhat a selfish posture. Noone asks free, uncontrolled entry, but even under quarantine rules, those with contracts are denied entry.
That's bad faith. That's a breach of contract, promise. That's where the US/West, with all its shortcomings, remains a better option for third parties. The experience of past two years shows that China's current conceptualization of globalization is scary. It does not offer anything.