This is why Christians need to abolish the church, along with its sacraments. Now that there are already so many people on the earth, we no longer need to reproduce, and the whole purpose of marriage was to make having kids more convenient. The only forms of sex that should be condemned are incest, rape, homosexual activities, misuse of contraception, and arguably zoophilia, with premarital sex and prostitution being tolerated.
Besides, if the woman got raped, the society would only condemn the rapist, and the woman can always adopt.