Out of respect for your channel, I was going to let this go, but now you're repeating yourself. Be careful of the words you use, because you're implying that i'm a psychopath that wants "controlled euthanization of the planet".
Maybe you heard about supporting women's rights, and getting the church to agree to contraceptives, and public funding for vasectomies. It took humanity over 100 000 years to get to the first billion, and the last billion was added in only 12 years. All of the environmentalist, homesteaders, or anyone concerned with preserving nature for future generations, should be debating this issue. We half to find ethical ways to reduce the birthrate. This is not imposing a crazy "one child" policy either. Everyone could have between 1 and 3 kids, the population could still decline.
If we can't figure this one out, there's a good chance nature will do it for us, or will head to world war 3 once the global economies can't keep up with depleted resources. Inaction will put us on the wrong side of history. Anyways who says they are for "sustainability", needs concerned about this issue. I will leave it at that.