It would change fuck all. The regions where there is still a lot of population growth (e.g. Africa) are so far behind in qualify of life compared to the massive

It would change fuck all. The regions where there is still a lot of population growth (e.g. Africa) are so far behind in qualify of life compared to the massively CO2-emitting countries that any attempt to improve their qualify of life means we continue to increase the CO2 output for decades more. Anyway, there is no chance that humans will collectively decide anything, least of all that.