...and yet no one would seriously consider murdering a healthy newborn child.
off-the-cuff counterexamples: the modern Chinese. Bosnians, Serbs, and Croats. Nazis. WWII Japanese in China. the Aztecs. the Carthaginians. the Spartans (well, less-than-perfectly-healthy children). the Hebrews under Joshua (8:26, 7:25, 9:24, 10:28, etc...) by the command of God, no less.
These are the people who you think we should emulate morally?