China buys most of Irans oil exports and pays a discount price. Ditto Russia.

China can defy the wests sanctions because the west dare not impose sanctions on China. China is now financing military aggression toward the west via proxies Russia and Iran and making a substantial profit at the same time. Sun Tzu would be proud.

Who said that all you need is free markets? Naive Libertarians...

No- the real world has always involved the nation and its power projection as significant factors in the wealth of the nation!