The truth is that family values, as used by the American Family Association, Dan Quayle, and the southern Baptists, has nothing to do with either family or values, nor does it really have anything to do with homosexuals, abortionists, or pornographers. Those groups actually only serve as windmills to tilt at. The true agenda is power - power over the intellectually weak, emotionally immature, and ethically deficient Americans who are incapable of critical thinking and independent decision-making, and who are easily manipulated by the basest of human emotions - fear and the desire for revenge.
For the fundamentalist who wants to believe every word of the Bible, however, life is a house of cards, with each card a tenet of faith. If you remove one card, the entire house collapses.
The real conflict in the abortion issue is between a value - the right to choose whether or not to have the child - and a moral dictum - don't kill other humans. The more here, even, is flexible and relative. "Thou shall not kill" really means, "don't kill productive, contributing members of your own society that aren't a threat to your safety." If it was not relative, then no "Judeo-Christian" person could ever go to war or execute someone.