Two quotations from _The Honest Politician's Guide to Crime Control_ by Norval Morris and Gordon Hawkins (which, based on what I've read of it so far, everyone should be forced to read, or at least, everyone who is a political leader or votes for them):
And, particularly from these "sportsmen," we must never tolerate the argument that if the murderer lacked a gun he would kill in some other way. If they believe that, they should, on grounds of sportsmanship, throw away their guns and club the deer to death, knife the bears, and poison the ducks.
The sanctity of life is often also taken to refer to the life of "the unborn child." Yet the use of this expression is as if we referred to the reader as "an adult fetus." To say that a fertilized ovum or an embryo is a human being and therefore entitled to the full protection of the law is a prejudicial abuse of language. Nor do those who take this position ever maintain it consistently, for they never embrace the logical corollary which is that all abortive operations are murders and should be so treated in law.I think I may have posted part of the second quotation before. But it's worth re-posting, among other reasons because I came across this Cat and Girl comic that pinkhairedcyn linked to that says the same thing, only with pictures.
For our part, in view of the fact that human reproduction is a continuum, such questions as "When does life begin?" are unanswerable, except perhaps in metaphysical or theological terms. Nevertheless it is quite practicable to draw objective distinctions between abortion, infanticide, and homicide; and in terms of these well-recognized distinctions we say that abortion should not be regarded as criminal as long as the woman desires its performance. We see no reason to regard some other arbitrarily selected point prior to parturition, in what is a continuous process, as having any particular significance.