Then he shouldn't be doing research funded by DoD and DARPA, and certainly shouldn't be sharing it with the CCP. You've literally made my point for me.
>Dr Chen’s work is classified or military
DoD and DARPA research are military in nature by definition. Most DoE research, along with the former two, are ITAR restricted as well.
>If I study forestry and collaborate with the Canadian government, am I betraying the United States by helping a competing economic power get ahead in forestry?
Massive false equivalence between China and Canada. China is not merely a "competing economic power". It is not up to Chen to decide who is an approved cooperative partner based on his personal feelings.
>Not everyone agrees with this.
You can disagree with an objective fact all you want, it doesn't make it any less of an objective fact. The CCP is evil and malicious.