Scenario: A couple are going to have a baby. They plan it for months, making sure to get it in the right place in the menstrual cycle etc, so they are sure conception will happen. Just as they are about to fuck, one of them gets cold feet and decides not to follow thru. Why is this permitted? This couple isn't giving the baby a chance to live, and has killed the unborn! Email your congressman right this minute and tell them to pass a law to make this kind of behavior equivalent to murder. Anything less is unthinkable.
In case you didn't get it, this is
sarcasm. If you
think about it a bit, the only real difference between this and
abortion is that
conception has happened, so this argument kills all of those except the
conception argument.