I don't think those will actually have the greatest impact. I don't have a source on hand, but as I understand it women in the US actually want more children. Stress from work and finances are holding people back from living the life they want.

These measures are important, but they're one side of the coin to liberating women. The other is attacking capitalism.

The end goal isn't less children. It's raising however many children you want, doing it well, creating a good future for them, and ensuring it doesn't come at the expense of others.