I think when you are comparing the USSR with China you mistake the USSR not being able to produce anything the world wants. China is able to produce many of the products the US demands.
The comparisons are not mine re the current ChiCom China.
There are reports from Asia and around the world indicating that China is facing a possible severe financial abyss.
Their problems have really nothing to do with exports but their internal problems. China reminds me of our nanny states like NY/Califonia and other blue states/blue cities, where they try to manage everything instead of letting capitalism and free market choices determine the economy.
Russia’s demise came from their over centralised control of everything from farming to manufacturing and defense spending as Reagan put their necks into their collective nooses. China has a lot of that centralised control going on in their pseudo capitalism.