When someone kills another person who has been born, it is not the same thing as a woman who terminates her own pregnancy.
The “harm” in civil society when someone kills another post-birth person in California, does no direct harm to a person who lives in New Jersey. That much is true. But civil society relies on law and order being maintained which means that when a person kills a post-birth person, they must be held accountable under threat of loss of their liberty or loss of their life or we are harmed by deprivation of a right to life and safety in public and in private. It would be Madd Maxx World on steroids if there were no punitive deterrents for killing a post-birth person.
Roe v. Wade for 50 years protected woman’s right to make decisions about their own body and there is no Madd Maxx world because of it.