[notfromhere]

The colonies that fell apart we're ones where there wasn't much organization and what organization existed was for resource extraction.

The Dominions were built for settlement, so they were sustainable states. India and other Asian colonies already had their own very established cultures and civilizations, and hence fared much better.

Pretty remarkable India hasn't exploded into separatism due to resource pressure, but I don't know how sustainable that is given that the population is still increasing