Poland, for example, is not as rich as China, yet Poland is part of the west and China is not. And there are many examples like that.
Poland is definitely Western aligned, as Japan or Australia, which shows the absurdity of this model.
This thread speaks for itself. So I'll leave it at that.
Nowadays China is taking the helm of "east" from Russia, but either way it's a geopolitical concept and remnant.
Stop saying this because it isn't true. It is an artifact of the Tetrachy of the Roman Empire.
For a while there was legit economic competition, Soviet GDP outpaced the US for a time in the 50s, but eventually the economies of scale and efficiency produced by the capitalist West out-competed the Soviets and won the Cold War.
Saudi Arabia is rich, it is not "Western"