To the positions the debaters have, it is. But to the debate, finding the right answers to the actual questions, it isn't.
Also, there are few cases where it's a question of the mother terminating the pregnancy or dying. And there are other ways of terminating a pregnancy than killing the baby. Doctors can induce labor, and they can perform C-sections. We don't need to talk about this as if the woman has an abortion or dies.
Why would anyone perform a C-section on a 3 month pregnancy where the child has no chance at survival? I'm asking honestly. I've never had children and never been pregnant so I'm ignorant about that and confused.