Owning the pro-lifers by threatening them with a society of monogamous, committed marriages is not the dub you think it is.
Oh no! A man would actually have to commit to take care of you and your potential future children in order to sleep with you?
Access to a sexual relationship would be limited to a single, solitary man who is willing to take a vow before God, family, and the eyes of the law to be with you until death do you part?