Justice Thomas's important reminder re: abortion and eugenics

In his opinion concurring in the Supreme Court's summary reversal of the Seventh Circuit's (clearly incorrect) ruling invalidating an Indiana law requiring appropriate disposal of fetal remains, Justice Clarence Thomas provided an important and timely, even if (for some) uncomfortable and unwelcome reminder about the inescapable connections between Planned Parenthood and the rise of the abortion-rights movement, on the one hand, and eugenics and discrimination, on the other.  Scroll down to p. 13 of the Court's order list to read his powerful opinion.  He ends with this: 

The Court’s decision to allow further percolation should not be interpreted as agreement with the decisions below. Enshrining a constitutional right to an abortion based solely on the race, sex, or disability of an unborn child, as Planned Parenthood advocates, would constitutionalize the views of the 20th-century eugenics movement. In other contexts, the Court has been zealous in vindicating the rights of people even potentially subjected to race, sex, and disability discrimination. . .

Although the Court declines to wade into these issues today, we cannot avoid them forever. Having created the constitutional right to an abortion, this Court is duty bound to address its scope. In that regard, it is easy to understand why the District Court and the Seventh Circuit looked to Casey to resolve a question it did not address. Where else could they turn? The Constitution itself is silent on abortion.