It’s because it was mostly the British empire that did the hard work of conquering territory and resources, then they handed the baton off to the USA. By the time the USA became the hegemon post-WW2 most of their colonies and neocolonies were already established for them they just had to maintain them.
The US doesn’t even understand the beast that it is riding.
The US mostly used monetary policy to do this, the petrodollar removed energy sovereignty for every nation on Earth except the US and its partners
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