In that article I mentioned that The Cartoon Network showed Peace on Earth (1939) on the Christmas episode of Toonheads. I described this cartoon as the supporting cast of Bambi (1942) in a scene from All Quiet on the Western Front (1930). The story opens with two baby squirrels asking their grandfather, "What are men?" when he comes in singing "Peace on earth, good will to men". Their Grandpa tells them that there are no men anymore and describes them as violent critters who kept finding new reasons to fight. One example he gave was the vegetarian people fighting with the meat-eating people. Grandpa then tells the kids the story of man's last war with graphic detail.
After the last two men die, all the animals gather in a bombed out church. The wise old owl reads "Thou shalt not kill" from a big book of rules (The Bible).
Then the animals begin to rebuild from their wastes.
This is my new favorite Christmas Cartoon