As I said above, things that are designed intelligently are efficient. It is terribly inefficient and cruel to start a baby on its way to life only to have no chance for life. Makes no sense from a purely efficient design point of view.
All the ID advocates are willing to swear under oath in court that intelligent design has nothing to do with religion, and that the designer is not God.
The designer is a psychopathic space alien.
I often start my arguments backwards to draw attention to flawed assumptions. Assumptions are the predicates of arguments. So by starting backwards, I was hoping to draw your attention to this assumption-- not to be unfair to you.
In any case, the deformities of children are based upon human preconceptions of what is "normal" and appropriate.
This reminds me of a debate I had with an atheist who said, "How can you believe in Christianity when its evidence comes principally from a prostitute?"
The nature of the evidence may be very much the point. Our rationality has problems. Our sense of "normalcy" has problems. God has chosen the foolish things of the world to shame the wise. I strongly believe this is a transcendent purpose within the intelligent design. This means that deformities (as we see them) are part of that ironic process whereby we recognize our limits of judgment.
We would do well to withhold our judgments against any human being-- no matter the degree of discrepancy with out own expectations.
I also suspect that the grisly mutilation of Christ in the crucifixion process was very much a reminder of our shallow habits of judgment and a deep reminder of what makes a being human.