Western 'diots often talk of a so called "Rules-Based International Order". It means "Do As I, US, Say, Or Else ...", ie. classical mob rule. It's the main reason for the current geopolitical problems as Russia and China never will bow under such a "mob rule of the US". The European vassals are of course an exception
It's a race between those three empires now, to see which is strongest when the resource flows are exhausted. The one left will devolve to small, regional warlord status, in a century at most, but they will still be 'the' warlord, which is better than being slaves. Oh yes, I think slavery will return, when muscle power is once again cheaper than fossil power.