... Keep in mind that term eugenics is used so broadly that things like the personal choice not to reproduce if you have a genetic condition, and laws against incest are also considered forms of eugenics.
That may be another whole discussion entirely. The big worry was, and is, that artificial selection of passed genes to create the best and strongest humans of the next generation ultimately diminishes the variety in the gene pool, which leads to worse mutations and physical disorders. The very same issues that affect generations created by incest.
I understand people not wanting sick children, but this miracle technology as an option, becoming just another commodity, is not just morally questionable but, I find, dangerous to the whole of humanity's future.