Not relevant; it’s still human life.
Although I agree with your conclusion, I disagree with your premise.
Legal abortion is based on Roe vs. Wade, and the rape/death case was the premise for when it was permitted.
The abortion crowd claims women have the right to an abortion due to rape or likelihood of death to the mother during childbirth.
So... how many cases of abortion involve that? I asked, and I got at least a rough answer to the question. Very few.
As to those few cases, the decision on whether to do it should depend on the mother, a doctor, and a religious counselor. I would not want to be any one of the three.