The chickens don’t mind giving us their eggs. In return, they get fed well and have a safe place where the foxes won’t eat them.
Plus when they're ready to eat, they die quickly. Can't say as much for many humans and many of the animals in the wild. Anyone who preaches this nonsense has probably never seen a Coyote tear apart a rabbit or little dog. The wild animal world is brutal. When did we stop teaching the hierarchy of the food chain on this Rock?