Creating made-to-order babies with genetic defects would seem to be an ethical minefield, but to some parents with disabilities - say, deafness or dwarfism - it just means making their babies like them.
Let me get this straight here. If a mother is going to have a handicapped child through natural means she must have an abortion to make the world better and its population stronger. Yet, it is acceptable to design a baby that has a handicap for the mere fact that the parents want the child to have this handicap. That sounds sadistic, cruel, mean, and a slue of other negative adjectives. All I can say is "Woe to them."