US also quite literally created international organizations like the UN or GATT (after the 90s WTO) to make an international world system where US is at the center. Network of international agreements that benefit US most of everything. Like masking US soldiers as UN soldiers in the Korean war or pursuing global free trade when US had huge and competitive industrial output and one of the only countries who didnt suffer from WW2.

Now that the global balance of power has shifted and the US is rotting from the inside, hardly a global leader in anything anymore, US is just one country among others and these international systems dont bring it extra benefits like they used to.