The theological impact of abortion is indeed between women and their pastors, priests, shaman, and gurus. But the physical, scientific, and biological reality is public knowledge. Abortion kills a very young human being. Abortion kills the smallest, most vulnerable, and most defenseless members of our community. That is not something civilized societies allow.
Some religions demand human sacrifice.
That doesn't mean we should make it legal. Abortion is killing. It hurts women and destroys families. Those favoring legal abortion claim that abortion is a religious issue, and that the government shouldn't be involved. We've heard language like that before from other people wanting to defend a right to do wrong.