It's quite clear that this is an issue of control -- meaning, that the people making these laws do not want women to have it. They are certainly uncomfortable with the idea that women exercise moral agency and have power to run their own lives in a way that other people -- their husbands, say -- would not approve of. So they create these elaborate fictions in which women are simple creatures, ignorant of the consequences of their actions ("consequences" being a term that nearly always pops up in conversations with forced-birthers who try to convince you that really, they have no wish to control women, it's all about the innocent babies, who are SO NOT a punishment for having sex) and heedless of the function of their reproductive organs. Why, it's a simple matter of educating them about the proper moral position -- and then they'd see the light! And if we have to lie to them, so much the better. It's for their own good, the poor dears.