Would it have been better if all of them were hanged? Probably. But the Soviets had no scruples...so we had to put ours on the back burner.
Had we hanged them all we might have made the moon by the 70’s or early 80’s. We wouldn’t have the modern world we have now until decades down the road. We they nazi’s yes, did they kill probably, with their V weapons and they as stated in an earlier post, deplored the deaths but were thinking about the science. Is it excusable, no, but their contributions to our modern world via the space program cannot be ignored either. Computers, health care innovations have saved millions of lives.
The left is never happy. If one morning the left overthrow the government, institute full blown communism and mass slaughter all opposition they would be bitching by noon. Apollo was a great triump for all mankind and the USA.