Since the 1 child policy, duh, and I believe all the products of that policy are also spoiled boomers. Contraception/Birth control are deleterious to the social order, nature is a much more effecient means of population control. When competition for resources becomes more fierce, people naturally have fewer kids.
Their IQ is so low that even if they are 3/4 of the earth's population, they are still a tiny fraction of the population of geniuses.
They cannot reproduce their way to greatness. They must copy geniuses to survive.