One problem with his argument. We are importing poor, uneducated and unhealthy illegals at a rate that far exceeds the normal birth rate without abortion.
Where do they find these people????
It seems to me that the best way to stabilize a population is to make sure they live a comfortable middle class life style. Every study I'm aware of shows that as economic circumstances improve, populations level off and families become smaller.
This is the error the Chinese are making. Instead of seeing that the vast majority of their people are well fed, well educated, and profitably employed they pass draconian population control laws and engage in forced abortions. Granted there are other issues involved in China, but I think that's a pretty good analysis.
L