WTF

If I had to steelman their position without knowing full context, I'm assuming that what they're trying to say is that abortion shouldn't be legal just because of the comparatively small number of cases where it perhaps would be justified (incest/rape) because it opens the door to a huge number of what they see as unecessary abortions.

Ok, but on the other hand, I feel like the position of "make all abortions illegal, even though I acknowledge that there are known cases and examples where abortion is justified" is still less reasonable than "make abortion illegal, but make exceptions where abortion is justified". Like, it would be super easy to have and justify that more nuanced opinion, and it would prevent them from being "dunked on" by people extrapolating their position to "you're ok with child rape and unnecessary forced pregnancies/births".