[blntechie]

This is a lazy comment.

India's TFR just reached 1.9 which is below replacement rate.. The state I live in with 60m people has 1.5-1.6 TFR and still going down rapidly towards Japan and South Korea level of population decline. This will be seen in the coming decades.

But you can't just go and delete the billions of people already born and are living. You can't change demographics in a day or even a decade.