On the one hand, the notion that the US has any moral authority in questions of oppression is laughable.
On the other hand, you get a taste of what Chinese hegemony would look like.
"Human rights abuses? Wasn't someone from a minority group recently MURDERED in your country?"
Conversation
US pretense at nobility is farcical.
Still, Russia and China responding to any and all criticism with "well somebody else did a bad so who cares lol!" is... also farcical.
There is no such thing as a noble hegemon.
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The end result of US collapse, in a world full of lesser powers with outsize militaries and trade influence, is unlikely to be better per se.