After the Cold War the world has been at the mercy of a single dictatorship that murdered over 30 million people across the world because it was the only "pole". The current multipolar world we are establishing once again is a much better and balanced world in comparison.
The only "poles" in the world that matter are the decisive strategic nuclear arsenals, of which there are currently three that matter: the US, China, and Russia.
Take the USA out of that, and you are left with two "poles", e.g. Xi and Putin.
Of course many people pine for the world before the post-WWII era we've been in for the last 70 years: the one where tens of millions of people died in wars every year. Yeah, that was so much fun, wasn't it?
I don't see where you garner this faith that Xi and Putin will be "nice" and keep the world in order, but there's no evidence of that and tons of evidence to the contrary.
Begging for the end of the USA is the same as begging for continuous wars across the world. It's not fun like Red Dawn, it's really awful like The Last of Us.