Incidentally, Dr. William Lane Craig mentions the story "Lord of the Flies" by William Golding as an example of how evil humans can be. However, a real life incident where a group of schoolboys were marooned on an island in 1965 turned out very differently...

the Guardian

The real Lord of the Flies: what happened when six boys were shipwrecked for 15 months

When a group of schoolboys were marooned on an island in 1965, it turned out very differently to William Golding’s bestseller, writes Rutger Bregman