Red China also embraced capitalism; it isn’t the economic views of these places that scares me. It is the political power structure; Hanoi would no more tolerate a Tiananmen Square demonstration than Red China would, and individuals are instruments of the state. I’m sure the Vietnamese people are very happy to see American dollars in their economy, and they can afford to be gracious - they won the war, and granted no concessions for the easing of sanctions/recognition. I’m not suggesting attacking Vietnam - I’d just rather not expose myself the risks of a totalitarian communist state.
Việt Nam has already had some massive Catholic demonstrations in Hà Nội itself. They were repressed but without nearly the violence of Tien An Men. Some people went to jail and the people were horrified that two or three individuals died, at least one of them accidentally. The government said little about it and individual officials apologized quietly. They are Vietnamese, not Chinese, a very different thing. If you are intnerested watch the you tube Lecture series on the History of Việt Nam by Professor Stephen Young
HERE. you will find out who the Vietnamese really are. They in some respects are much more like Americans in cultural attitudes than are any other Asians. They are individualists.