This argument makes sense initially, but when you consider it more deeply it doesn't really. If it was only about getting tax revenue and considering no other factor, the government could just print money and let people stay at home. I say it's less about levying taxes and more about harnessing the productivity of these woman working outside the home. It is also clear to me that industrial nation governments have a higher goal of limiting population and physically eradicating the people of their nations, since most of their policies add to that trend.

This has always been going on through the history of civilization, but since nationalism became the strongest cultural force, the population no longer accepts being eliminated by foreign powers, so instead that work is being done by domestic rulers – focusing most of their efforts to exterminate the young to the benefit of the old.