The discussion was about newborns, and every one of them is adoptable. Although many potential adopters want healthy white babies, every newborn (including black, preemie, Down's Syndrome, crack-addicted, etc.) is absolutely wanted and can be adopted. No newborn will lack willing adoptive parents in the United States, and that's a fact.
It is true that older children and sibling groups are hard to place. Most of the reason for that is that the courts are very slow in terminating parental rights, even when the parents are guilty of abuse and neglect or otherwise criminal. Most of the kids in foster care and group homes are not legally available for adoption; and to adopt one who is legally available requires going through an incredible amount of government red tape and regulation. (I know. My husband and I tried.)
People who favor killing these kids, whether before or after birth, can hardly be considered advocates for the children themselves and in fact display a shockingly demeaning attitude toward the babies in question.
Kids are not disposable, even if, disgracefully, the Supreme Court will allow you to crush the littler ones.
See my post #125