So, there was talk about use of aborted fetuses in the research for the J&J vaccine. I brought up the whole moral issue of using ill gotten research for beneficial purposes. The following link is a pretty good analysis of a Jewish perspective.
Some things to consider, the morality of abortion, itself is debatable. And the abortions were not done to gain the samples.
Nazi experiments were torture, pure and simple. The scientific process was questionable, but that doesn’t mean someone couldn’t have used the research to better mankind.
What is bettering mankind? Artificial insemination or something as important as curing cancer or dementia.
A last point I’ll raise. Is there a separate argument that the Nazi research should have been destroyed when discovered; but if it wasn’t and true good can now come from it, is it a different story.
Where is the line?