Wars the US waged in Iraq, Afghanistan, Syria, Yemen, and Pakistan following September 11, 2001 caused at least 4.5 million deaths and displaced 38 to 60 million people, with 7.6 million children starving today, according to studies by Brown University.
I am not so convinced of that. Will there be imperial actions and thus imperial cores?
Very likely. However the hegemony that the USA could project onto the globe after WWII is a singular event for the US. The situation is very different now and while I do think that the climate catastrophe can change quite a few things the power ratio between the imperial core and the rest of the world will not be as such.
The blocks that are relevant in economic power after the USA’s decline are the EU, Nigeria, India/Pakistan, China, maybe some South American coalition. Of those no one is uncontested in its economic resource extraction outside its borders.
There might be a future government which changes how China operates and turns imperialist as the USA was (currently that looks unlikely), but even then it has a few more hurdles on one hand and then there is the competition in the multi polar world that restricts projecting power, too.
Maybe I am more of a , but think contradictions do enough to fundamentally reduce the strength of empires in the next 50 years.