The selective reductions are not the embryos that stem cells are harvested from, though. True, selective reduction aborts implanted embryos - but there are still half a dozen or more blastocysts that are never implanted at all. Those are the ones we could harvest stem cells from - at 4 or 5 days old. Once it’s at the implantation stage, it’s too old to harvest stem cells from anyway.
I think it’s the lack of outrage at the 4 or 5 day old blastocyst disposal that has us scratching our heads.
But, since you bring it up, I’ve not heard any outrage over the selective reduction aspect of IVF, either.
And, bracing for the flames, I suspect it’s because women seeking IVF aren’t “whores” who got knocked up via irresponsible recreational sex. At the heart of the matter, if life is sacred from conception, then there should be picketing outside IVF clinics and graphic posters of blastocysts with hateful words under them, and infertility specialists should be the target of death threats and bombing. It’s not. It’s only the young, single women who are targeted, and the providers helping them.