[smokel]

I hear this argument a lot, but it makes no sense.

How would an economic phenomenon (requiring a typical form of green leaves to guarantee a happy life at old age) precisely counter a biological phenomenon (a desire to procreate)?

It seems more likely that readily available birth control and a particular willingness of women to join the labour force is the cause here.

What is stopping extremely rich narcissists from creating thousands of children once technology allows for it? We're in for a horrible population growth if you ask me.