But economic opportunities for women in no way implies that these economic opportunities must preclude time for raising children. It's entirely conceivable for part-time jobs to exist, or for other economic setups that allow for maximizing the workforce while still promoting children.

This is a consequence of our economic and cultural systems, not because women working somehow become incapable of having children.

These were simply statistics. When women know how to prevent having many kids, when they are in position to make independent decisions, they want to have limited amount of kids.

Women with part time jobs and time for childcare still have easier time with 3 children rather then 5.