What happens when that child has a disease or a major disability at or close to birth?
Think about it. If you look at some of the statistics out there for certain infant hood diseases and illnesses...they are scary. We all say, in out hearts, that we would love the child no matter what; regardless of if it were severely ill or disfigured. But, once you stop letting your heart control your every emotion and step...do you honestly think that? Could you really take care of a disfigured/ill/deaf/etc. child, without giving up or just wanting to end his, her, or your own life, out of just pure pity...or...self-centered anger, perhaps?
Take this hypothetical situation: your child is born deaf, or with severe mental retardation or a lacking of the ability to grow substantially. What would you do? Would you hang in there, and truly take the "Beauty is only skin deep./ I'll love my child no matter what." thing to heart, or do you give the child up for adoption...abandon it...?
Would you honestly be able, looking at whom you are mentally now, to deal with that pain?
I, myself, am quite afraid of my child being born with some kind of deficiency or illness. I don't think I would be able to do it, at all. It would crush me. I would have to give the baby up to adoption or do something, because I wouldn't be able to handle it. I would NEVER kill a baby over such a thing; the baby is an innocent being - I have no right to. But I wouldn't be the strong parent saying "I'll love you forever. I don't care." ~ at least, it doesn't seem like it.