It isn't necessary to argue against abortion by arguing against a right to privacy. An unborn baby is a separate and distinct individual from the mother. There are no rational arguments against this. What we are really talking about is whether this individual member of the Human Race has a right to live or is no more than personal property until it magically obtains this right by virture of a trip down the birth canal.
"Abortion backers fear ..."
It's about time.