Well China's economy is currently tied up in a housing pyramid scheme that's gone burst.

Russia's economy is on such a war footing regardless of if it wins or losses in Ukraine, the economic shock of the end of the war will bankrupt the country. See Dutch disease.

And no one wants to host the Olympics, it's a huge money sink.

So it doesn't really pay, it's just bankrupts you. Even Trump's America is having massive stock sell offs and other countries dumping the dollar.