AviraDeArah: well written position. But I am personally not knowledgeable whether it is true that saving the mother is “the only really necessary [or preferable/allowable] circumstance.” I am generally aware of more circumstances, however. And not just cases of deformity. It sure would be good to know.
Curious: why is this issue so important to our community? Most abortions are undertaken by goyim. If you say it’s to prevent any Jew from getting an abortion, then you should oppose the death penalty too, correct? But if it’s because goyim aren’t halachically allowed to have abortions, since when do yidden so concern themselves with what goyim are and aren’t allowed to do a al pi halacha?