It is believed that there was a time, around one hundred thousand years ago, when there were as few as a couple of thousand humans on earth. That was the closest we have come to being extinct but there is still time to fix that.
If you put 2 rabbits into an enclosure & give them all the water & food they could ever need & then close the door, what will happen?
They will live, breed & die. The problem is that slowly, over time, there will be more rabbits & only so much food - eventually something has to break. That cage is very much like Earth, only so many resources & an ever increasing population.
We are, at the same time, smarter & just as stupid as the rabbits because we can see it coming & yet will not be able to stop it either.
Allan