It's a question of morals not science, that should be completely obvious. If you believe a fetus is a human life then its probably more justified morally to end the mothers life instead of the newborn. There are of course some exceptions where the fetus wouldn't be viable in any scenario, those rapidly change with technology.

To be clear I'm pro abortion when its medically needed, I just think people give the other side too bad of a wrap and act like this is settled science.

Also worth noting that overturning Roe v Wade would reduce the loss of life if you believe a fetus is a person. Most abortions are not medically needed, meaning we are killing millions of people