This is not an objective fact. The people not having kids? They either don't want them or cannot afford them. Nation states? Unwilling to shave off more of GDP to pay for improved quality of life for the people who would have kids but don't for economic reasons. At ~8B people globally (on our way to ~10B by 2100), we already don't take care of the humans here to reasonable standards (even though we could; to not to is a choice). Do we like people? I argue the evidence says no. Certainly, certain people (faith based, pro natalists, etc) are clamoring from a pro birth perspective to have more humans, but after that, it's very much "good luck to you."