I couldn't get it with pony tail or braid.
So your question of "what kind of overpopulation would they have" is the wrong one in my mind, since the policy led to their current youth demographic, which is heavily skewed to males. A good article on this here.
If you want to see what would have happened without the one child policy, you can direct your eyes to India and their esp. lower cast males' problem and the rape-rampage and who knows what other social problems will pop up.
As what comes to Tibet, it was ripe and there for the taking. Not an independent country at all, as some seem to believe. China got there first.
He gives great examples what was wrong with the policy and how many people are suffering even today because of it. I'll give two examples:
A woman was forced to abort her baby in the ninth month, because it turned out that her husband had a baby from a previous marriage.
There are millions of people, born as second children in poor families, who don't exist in any official documents, don't have an ID card and because of this can't work or study.
If you really want to use the word bear. You would have to construct a different sentence. Though uncommon, saying a woman bears a man a child is the correct construct. So you would get something like "because women could not bear them any children". But that is weird cause the problem seems to be on the women's side like this.
Or sire "they could sire no children"
Or just keep it plain modern English and say conceive (I wanted to use simpler terms like get, have or father, but then you might get people saying but what about adoption..)
My neighbour broke into my house! Or that foreign guy from the market. I am not sure which but it was definitely him!!
But seriously I think it is a bit premature to state as fact. You can't state something as fact if they don''t even know what animal. It is still all maybes and perhaps. It is known bats are hosts of many (corona)viruses so not unlikely it was the carrier of this particular coronavirus, but not proven yet, just offered as a likely route. Like how the most shady looking guy with a record might be picked as prime suspect. It is not proof he did it.
Especialy with so many contradictions going around (and I am not talking about members of the public, but by officials) they seem to change their mind (or change what they decide to tell the general public) every few days. (like pets can't get it, objects are totally safe, mask are useless..)
it gives me summer olympics