Guys there is no point arguing with Extro. My DH is a theologian and I regularly get drawn into discussions of this sort (not with him though, thank goodness).
Extro's response will always be based on something we cannot accept because we cannot accept "God says so" as a reason, and extro believes "God says so" is literally incontrovertible.
After I donated ?100 to Choice Ireland last night, they sent me a gracious thank-you note with RIP Savita at the end.
If I knew of some way to fight the rot at the source - the disgraceful and shameful Papal encyclical Humane Vitae - I would do so, tooth and nail.