There is a beautiful thing about an egg cell. It is the bud of a life that will grow into one of the most beautiful things, which is a baby. That bud depends on you to let it grow into that miracle. And thus, abandoning it and letting it die is not allowing that baby to live. Many babies that could have been alive now could have been your best friend, lover, teacher, doctor, savior, etc. To think that a baby would die before it has a chance to be one is very upsetting.
Therefore, every time yeu've had yeur period and *NOT* given birth, every time yeu've used a condom, every time yeu've done oral instead of traditional vaginal sex, YEU'RE A MURDERING BASTARD WHO JUST KILLED A BABY.
"potential to be" and "are" are two distinctively seperate things. A fetus is still not a child, any more than a seperated egg and a sperm are. When it's born and can live independantly, it is a child. When it is a part of the mother, it is 'a part of the mother', not a 'part of itself'.
Until such time as it is NOT a part of the mother, and can live on its' own, it is not a child, it is just the 'possibility of a child'. Many fetuses that could have been your best friend, lover, teacher, doctor, savior, etc. are DEAD from stillbirth, diseases, and other ailments within the first week after birth.
Keep in mind as well, that this whole idea of "zomg babies are people too!" is still a relatively recent concept, and not supported in much of the world. It's a heavily cultural concept. It's not supported hardly at all in china, and until the last few hundred years, children were considered 'expendable' until they were about 5 years old due to a greater than 50% child death rate. Why do yeu think yeur great grandparents had like 11 siblings? Because they needed that many because at the time only about half of them lived to age 10, and their parents really didn't care if they died before then.
It's not a "pure" morality issue, despite whot people want to believe, on either side of the fence, it's very much so a cultural issue.
If kids live longer and live better lives, then this 'zomg no abortion!' thing arises. If they die early on at a young age regularly for several contributing factors, then this isn't even considered to be an issue most of the time.
In any case... it's not even so much that I disagree with the stance here, I just completely disagree with the poor line of reasoning is all.