And science knows that each new individual's life begins at the moment of conception. Theologians can debate how many angels can dance on the head of a pin. That has nothing to do with public policy. 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.