Yeah, how do you think planning the largest genocide in history sounds to people? Do you even hear yourself? Do you want to go to 6 out of 7 people and tell them they cannot breed? What will be the punishment if they do? Or will you forcibly sterilise them?
The one who seems to be hearing voices in his head is you. I never suggested such a thing as genocide or forced sterilization.
I'm simply pointing out what I believe to be the root cause of the problem, and that if you keep applying ointment to wooden legs, you aren't going to achieve much.
But then talking about overpopulation is taboo, so let's just dig our heads in the sand and wait to get properly baked.
World population will decline in any case if/when climate catastrophe happens. People will drown, drop dead from heats, die from starvation, etc. It's the Lotka-Volterra model where the predator is the environment.
Climate catastrophe is created by humans. Climate catastrophe kills humans. Conclusion: Humans kill humans. The genocide (mass scale murder) is already here (assuming climate change will be as bad as worst predictions are)
Only the strongest will survive. That is the cornerstone of Nazi ethics. That will also be the reality of everyone when food and water gets scarce. Damned if you sterilise 6B people, damned if you don't and they die from heat or fighting each other for food.
Moral theoretisising aside, population will decline before the total climate collapse. The current ethical beliefs of feminism, harsh economic conditions for young people (inequality and foreseeable end of growth), depressing reality how we will die horribly from ISIS, China or Climate Change. All of them bring about to less pairs creating children.
But humans will survive. We are worse than cockroaches. Nothing can destroy us. Mars might happen. Singularity maybe. But human race will persist in any case as long as earth persists in any livable state (-60 to +60 degrees C, somewhat fresh Air and uncontaminated water). Humans will downscale to a couple millions but will remain.