Terence McKenna once proposed one way to save the world from overpopulation: and it is that no woman should raise more than one children

This simple proposition would have these consequences:
-In 40 years, population of the earth would be reduced by 50%
-In 80 years, reduced to the half again, what means 75% of the population reduced in
One human lifetime.

No wars would be delivered, it would serve individual womans and the general humanity in the reduction of resources demand, there will be less ambiental pollution, less poor and hunger, more wealth without any kind of conflict.

Obviously our political capitalistic system doesn't want this, because they view the masses as consumers and they want more consumers in order to make them more rich, without paying attention to all the damage they are doing to the world

Why is no one talking about this?