However one might say that infertile parents already do this, by choosing the egg and sperm with specific criterias - like beauty, or intelligence. That it would threaten minorities, like disabled people. Not that I have anything about disabled people, but I would find it pretty insulting if I was told that my group was so important that we had to keep producing disabled people. Rather the contrary - engineering babies may be our way to finally eradicate a majority of diseases, if not more. There is no ethical qualm to doing so any more than there is in choosing one's mate or egg donor.
Genetic privacy seems to be by far the most serious problem.
And as you know, our genes not only give possible health risks but basically the interval in which a person exists in all characteristics. No, not at all. Of course, the government thinks otherwise. Genetic discrimination is no more valid than racial discrimination, because genetics do not give any indication of the present state of an individual. To simplify, genes are the blueprint from which people's bodies are made, and our body delimits our capacities.