insofar as I've read, the yalta agreement, the 1945 agreement, the 1950 agreement, and Liu Shaoqi's quote all seem to be quite reasonable statements, agreements, and events in relation to their historical time periods. Like unless what you wrote above was directly quoting the description from the T.V series, I think it's rather uncalled for and very biased - as amusing as it is to hear about Mao locking himself in his room to fake an international crisis.