The Chinese know American Presidents love announcing big trade deals, for headlines back in the USA. Has happened since Nixon.
So they oblige with this charade.
No one bothers to look at the details, or what happens in the years following.
This was the purpose of the trip. It was why Visa and Mastercard were among the 10 or CEO’s. It was all about announcing business contracts. Nothing more, for the most part.
Great comment.