Then will all respect I must disagree. I said that I am ethnically a Hong Konger. When China broke its UK treaty (effectively, a temporary neutralization treaty that granted autonomy to HK for a period of years), I also felt in my gut how horrible that was: it was cultural genocide, in my eyes. But at no point did I need to dismiss Chomsky's theories or find it invalid in scope. I have no problem pointing out how US and UK foreign policy escalated Chinese actions that harmed HK people's autonomy and oppressed young Hong Kongers' democratic party. And unfortunately I have to point out that if anyone objects to such a comparison, that the similarity is obviously not the same in magnitude compared to an international war, but the moral philosophy and political dynamics is a proper analog, just on different scales the way triangles are similar but have different magnitudes. I know this may not fully explain why I disagree with you in Chomsky's validity, but this is at least to suggest to you that someone in analogous situation may have a valid reason for a different assessment of Chomsky, specifically due to how one interprets his leftist ideas.
I am happy you have found analysis to contextualize the world around yourself in troubled times.
I am in no position to estimate how well Chomskyist analysis is applicable to HK. It's just not very good tool in understanding the war in Ukraine or Finland joining NATO.
There might be some cultural context missing which would make this very hard to communicate.