And that's why it's called mansplaining!

scnr.

Here, neither a fan of Cartesianism nor of all schools of Dark Enlightenment, but the math is rather simple: eggs are expensive (a fertile human female produces two a month), seeds are cheap (a fertile human male produces millions a day).

That's the fundamental formula the whole fragile architecture of the dispute builds upon. If one of the last ten men on earth misrolls his dice in a round of Russian Roulette, it's still no big drama. If one of the last ten women on earth lose a gamble, the story of humanity already becomes a thriller.

tldr; why have women been oppressed for thousands of years?
^{Because it worked.}