I've always maintained that the people against abortions aren't so much for saving lives, but for punishing young women for having sex. I know there's rape and other uninvited sexual aggressions out there, but by and large they are after those who are having sex when they aren't. They relate it to the hairy legged free loving hippy chick. They are supported by those guys like Cruz and Kavanaugh, who just didn't have it when it came to finding women to have decent sexual relationships with. Penis size, looks or other insecurities drove them to the misogynist side. This is a punishment to all those women they wanted and couldn't have.
Those men often devote themselves to business or politics, make a lot of money or gain power, then find young women to have sex with. Then their wives sit at home with the pool boy, which is ok, until the sugar daddy is exposed as a philanderer. Then the wife becomes the woman scorned, and in order to save pride, they go after the 'homewrecker' and once in a while the cheating husband too, but always the side piece is attacked.
So much porn is violent porn, nearly always against the woman. In an odd way, this is an extension of that.
All of it has to do with punishing those engaging in sex for pleasure and curtailing it. Starts with the churches (rhythm, abstinence) and just grows from there. Next will be same sex relationships and then contraceptives.
I'm not saying this is the full underlying reason for this vendetta on abortions, but I'd daresay it's more this than saving lives.