As we're discussing manufacturing, the opposite of the western world nowadays would be China (and India, Vietnam, etc)
The term itself is an artifact of geographical considerations from the Cold War era, with Europe and Russia being west and east of the other respectively.
Nowadays with Russia increasingly demonstrating their ineptitude, China is starting to fill "the east" shoes.
Not so much, no. The concept of the "Western World" originated in the actions of the Roman emperor Diocletian who divided the Roman Empire in 286 into two halves, each with its own separate capital, government, and church.
Except in its origins, which referred to Rome as opposed to Constantinople.
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.
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"