They fear a legal precedent for exceptions to abortion “rights” that would be upheld in the USSC?
It wasn’t that long ago that in some circles the one sure fire way to be accused of being a fascist was to suggest that people should maybe have upright sexual morality and maybe keep it in their pant till marriage was the best policy after all.
The Left and too much of the rest of the culture has essentially defined sexual license as the sum total of the pursuit of happiness. It’s why sex and whatever helps there be more sex (like abortion) is just about the only thing the Statists “common sense regulations” must never, ever touch.
Simply, too many people have a notion of Liberty that rises no higher than someone’s crotch.
Toss in empathy for the guilty, the offender, but none for the helpless that cannot be seen on the nightly news and you’ve the modern Left.