The people who feel this way are the blame the victim people who have always found a way to be cruel and justify themselves, self righteously, and truly, truly believe they are better, smarter, and closer to the god they imagine then the rest of us terrible sinners. They love punishing people, and likely are rubbing their hands together with glee, thinking about all the ways they can punish all the unwanted “bastards” conceived in sin, and make a buck or two whilst doing so. If they can shame the mother, or break her heart, it just makes them extra happy, because they feel it proves their point, she’s a garbage who created garbage.