Rather an extension to your logical argument (not disagreeing or agreeing): Either men should take paternity leave to let the women work or then they should support the family financially.
More generally:
Having children costs something, because it requires work input. Who pays for the children? The men, women, families, their employers, the state (=also people who don't have children)?
Paternity (as opposed to just maternity leave) is for me the solution to many problems. Here in Sweden this already exists (18 months to be shared between parents as chosen, with some extra for the person actually physically giving birth for time spent in hospital during pregnancy). There is even some debate about having to use 9 of the months for each parent.
Possibly a necessary means to end (if you believe in this kind of logic) but hopefully not an end in and of itself.
(Already got enough minus points for pointing out gender issues and advocating free education so may as well dig myself even deeper :) )
More generally: Having children costs something, because it requires work input. Who pays for the children? The men, women, families, their employers, the state (=also people who don't have children)?