It's too selfish for humans to say world is better. Is the world only for humans? Does it belong to us only? Every other species is in terrible condition than before or they got extinction. And the better is not going to last. All the progress is because of extreme fossil fuel usage. The effect has started to show, to be honest it's going to get much worse in coming decades. It's like a person falling from a building…
No. This growth was, and will continue to be, driven by industrial capital, mining, and fossil fuels. How are children born today going to raise grandchildren in the likely decline of those advantages? And there must be a discussion of the costs: pollution, climate change, resource depletion, species extinction, and myriad other social and environmental externalities.
Are things really "better" if more kids are born... into an unsustainable system? I think the younger generation today is ALREADY seeing the cracks, getting less from the system while paying higher costs to buy in. The energy-blind adherence to growth at all costs is a philosophy that does a disservice not just other species on earth, but future humans as well.