Earlier quoted context omitted.
While the evidence in this case seems to be against this statement (Amazon indeed offered worse service than competitors) I think it is otherwise valid. Chinese are really driven to become the world's superpower number 1 and give no quarter to Western companies trying to establish themselves in China. So the big dilemma is, do we let them? Or more precisely, do we as the outside world let Chinese stifle all the forei…
Act how? What precisely could be done outside of protectionist policies that seem to be regarded as outmoded, inefficient, and taboo. Are we going to war? Isolationism? React in kind? Simply wait?
This might be applicable for hardware sales, but for service companies (including ecommerce, search, ride hailing, all the big USA tech company niches) it's kind of a moot point. None of the big Chinese companies put any effort into working outside of China. In fact my biggest complaint is they don't do any internationalization at all, so if you don't read Chinese you basically can't use anything. To the extend that services even work outside of China they are mainly only used by Chinese people, see for example WeChat or Taobao or Baidu. So I'm not sure this line of action would have any effect.
If the parent instead meant blocking Americans from doing any business with China (as a manufacturer of smartphones, for example), that's likely to have much more downside to American companies and consumers than to China, so we'd be shooting ourselves in the foot.
But all these points are debatable, see all the back-and-forth about the tariffs/trade war. Some great economic write-ups on all sides.