Abortion is an inalienable right. Abortion is not a violation of any right because there is no such thing as the freedom to live inside (or outside) of another human being as a parasite, i.e., against the will of that person.
This principle applies to both fetuses and adults. As a woman has a right to choose whom she has sex with (as her body is her property), so is it a woman’s right to choose what can and cannot remain inside her body (as her body is her property). As it is evil for someone else to dictate the use of her body by raping her, so it is evil for someone else to dictate the use of her body by forcing her to remain pregnant.
As there is no such thing as the right to live inside another, whether the fetus is aborted, because of incest, or rape, or “convenience” does not matter politically—whatever the reason, it is the woman’s inalienable right.