If you can justify abortion in one case, then abortion is acceptable to you. It's either taking a life or not. Logical consistency is always what screws us.

Some people say, "Oh, I'm against the death penalty except for extreme murderers & child killers (or insert your pet justification)." These people are pro death penalty & need to accept the reality of their own position, as do those who justify abortion in any instance.

I'm personally pro-death penalty & anti-abortion.