Biology set up the human fertility situation to be the way it is.
I don’t believe it was patriarchy that cried out to be so lax about men risking the impregnation of women. If contraceptives were perfect then that wouldn’t ever happen, and nobody would be wanting abortions even for the basest reasons, but it so happens they aren’t. Something as little as an antibiotic can nullify them. And then there is just plain stubborn human nature.
The supposedly feminist Vagina Monologues are about the seductive power of the woman. It’s kind of mean to aspire to be a sex trap and then want to snuff out unintentionally conceived babies too. Really mean, actually.
But perfect contraceptives would not make the overall picture right. It would just totally cut off sex from fertility, and thus cut the heart out of male-female commitment, devotion and synergy. It would be the end of marriage and of fatherhood.
And we're almost there. Almost.