This is the problem with the internet. You think youโre having a conversation with some dude when in fact youโre interacting with a troubled child who still thinks heโs going to commit suicide very soon.
I think its true that we must reduce the population before earth does it for us. But theres no way anyone (in a significant amount) would agree to do it by willingly die (or having people they know die) for it.
So we're left with birth control. Which we never gonna be able to do globally because so many think of birth rate as a way to win a culture war.