OK, here's the deal... China is pulling some shit, as usual. Corruption is a normal part of everyday business with them... it is culturally embedded. Not an insult to all Chinese, just a fact of their culture.... Like how the US is "a culture of material capitalism", China is "a culture of bribery". Anyway, this was a setup to attempt to give China a boost in future negotiations... start the conversations "insulted", and you get a slight lead. Trump's error was referring to the Taiwanese Leader as "The President of Taiwan" instead of "The President on Taiwan"... a slight nuance that China is hoping wins them some negotiation points.. or a kickback.. or something.
The earlier comment about how Trump tweets International Diplomacy happenings like a trip to IHOP with Grandma, was fucking hysterical... in a "this is exactly why we are all doomed" kind of funny way.