@umbra21 - This kind of fetal syndrome often takes away the ability of the child to develop normally mentally as well as physically.
I think that you are better off with an abortion if you have an embryo with this. I understand your argument, but really you could make that argument for all the embryos that won't come into being because the egg was never fertilized. The early fetus doesn't know it exists, not even close to the same level of an animal.
And yes, perhaps later on it might choose life, but that's again true of every egg that could be fertilized.