Shame on you!
This is size-fits-all taken to its extreme form.
A coalition of indian and chinese would come into power, who would "find" that the weestern world has too much money and they themselves too little. They would start a massive redistribution campaign to destroy wealth in the developed world and prop themselves up.
That is exactly what would happen. Also the majority might impose its will on the rest. Would China impose its view of religion, atheism? Would India impose Hinduism? Maybe the muslims might someday become the majority and impose Islamic fundamentalism.
If the rest of the world wants to do something like that let them. But keep the US out of it.