If you're going to argue theology with Catholics, please study more than Maria Monk and JaxChix comix.
However, in a very few special instances (such as when a baby is a rodef, a "pursuer" who is about to kill the mother, and has not yet arrived at the point of "ensoulment") abortion is actually mandatory (after "ensoulment" abortion is forbidden even to save the mother's life and is murder).
What a load of hooey.
Let G-d's holy laws determine right and wrong in all issues.
Piffle. You cannot defend mandatory abortion from God's laws.
G-d's Laws are the one and only source of morality and ethics. Most of the time abortion is strictly forbidden. Like capital punishment, it is mandatory only in a miniscule number of cases. But in either case G-d's Laws determine what must, and what must not, be done. To erect a moral system in regarding to anything (murder, abortion, theft, homosexuality, "social justice," etc.) apart from G-d's Laws is to open the door to an independent, secular morality.
My remark about the old Protestant prejudice did not come from He-Who-Must-Not-Be-Named. It is actually something I once heard (a long time ago).
Thank you for your mechilah.