Slag, there was at least one more melanin-deficient man in China throughout and NOT in prison.
Jay Chen who paddles in this very stream has a daughter with a rhyming name Ai Li, aka Coconut, which rhymes with Rewi Alley, who Google can tell you about. I recall he even had Rewi in mind when they were doing the daughter-naming. His family had something to do with Rewi, back in the day.
He was a Kiwi bloke who went there in the early 20th century and I have in my store of stuff a booklet signed by him in the 1970s [which my parents, fan-club members of China, and members of the China Society in NZ got when visiting China during the 1970s]. Six degrees of separation and all that.
Your point is correct though, that there were not a lot of "English" left in China or India after their revolutions. But I think it was more that the Euros fled, rather than that the locals would have gaoled them all, killed them, or made their lives all that miserable. But the Euros would probably have had their assets confiscated, which is some disincentive to normal people to remain in any particular place.
If China or India were to become libertarian in their politics, I think you would find a swarm of Euros wanting to move there with their assets. That's not likely though. Nowhere on Earth is there a libertarian place, including the "free", giggle, snigger, USA. Though the libertarians were planning a move on New Hampshire [I should check on how that's going].
Mqurice |