I think that in the end having so few humans on the planet would not be able to sustain our current economic model where companies want as many consumers as pos

I think that in the end having so few humans on the planet would not be able to sustain our current economic model where companies want as many consumers as possible to maximize their profits. Eventually with automation many menials jobs could be replaced and have been replaced slowly over the past century or so. I think with the advent of A.I. systems many tasks will be automated freeing up humans to be the maintainers of such systems and we eventually would not need as many humans to produce for the needs of everyone. This allows a world population of 1,2,3 billion to be able to maintain/produce enough to sustain everyone efficiently though automated systems. Getting to that population would take many generations of educating people that aren't privileged in the 1st world to learn to cull their habits. This needs to be done willingly and not forcefully otherwise you just have a genocide similar to another person who wanted one perfect society.... This could be done through incentives where if a country shows it is lowering the overall impact of it's population and is consolidating itself to be better for all, to be rewarded with economic incentives, better trade deals and other means. Countries who fail to reduce themselves would be missing out and even if the elected leaders would prefer it that way eventually the citizenry would ideally get itself a leader who would represent the interest of the population. Sadly, representation doesn't happen in many places on this planet and trying to do this peacefully without war/violence against those who refuse would be the hardest challenge. Other countries may need to 'wait' them out for a generation or two. Refusing to trade/help them and let them self destruct with over consumption until their population is small enough that they are willing to rebuild. However, when it comes to getting everyone on the planet to work in step with each other for the benefit of all and not a self-serving interest.....good luck. Just my 2 cents on this 'taboo topic'