>Developed countries have lower population growth due to better access to sex education, contraceptives and healthcare. High income that mostly constitutes per

>Developed countries have lower population growth due to better access to sex education, contraceptives and healthcare. High income that mostly constitutes personal earnings is different than high income that mostly constitutes guaranteed government transfers. The personal responsibility required to maintain the former creates an incentive to avoid having children one is not financially capable of support. The lack of any such requirement in the latter creates the opposite incentives. Moreover, the correlation between high resource availability and low population growth is a historical anomaly. For most of history the opposite has been the case. There is no guarantee there won't be a return to the historical norm. Natural selection will favor the growth of population groups that respond to high resource availability with larger families, so this is what we logically expect to predominate. Finally, you never answered how you would get 300 million people in the US, let alone 7 billion people worldwide, to agree to redistribute their personal assets.