Stepping out of an electric car into a high-speed train, you have no idea how people live in Cuba. There are no shopping malls, no Sichuan cuisine, no modern factories. Australia does not export all its wheat there, Europe does not buy all its clothes from Cuba.

Cuba in the 19th century. Only medicine there is still more or less at an acceptable level. Sure, China is big, and it has richer regions and less rich regions, but I'm sure even the poorest Chinese region earns more than all of Cuba.