Again, adding over 7 million people is what’s important, and it’s a huge number.
We’re talking about a loss of 3 million once you factor in deaths. If it was a country like Canada, with a population of less than 50 million people, that would be problematic.
But with a population pool of 1.5 billion, what’s the actual concern? What social instability does this cause that a population of 1.5 billion already doesn’t?
There will never be too few people in China, and a slow population decline from 1.5 billion allows for a more sustainable future.