Western countries aren't nearly as overpopulated as most Eastern countries. Compare the States, one of the larger Western countries, to China. Or India.
It's absolutely an issue, but the West is a saint compared to the East right now.
Yet the US has double the carbon footprint per capita of China and more than 8x that of India. It would be much easier for Western countries to cut their resource consumption in half than for Eastern countries to cut their population in half.
that's literally "ad hominem" & what kind of answer you want to hear now? a) yes I wish too b) lucky me ? in either case it doesn't provide any good points to a solution
Saying that putting children in the world is the most egotistical thing you can do seems like an ad hominem to me, so we'll call it even.