At the end of Ralph's meeting in chapter 5, what did Jack say and do? What does this reveal about his character?

Jack says that he and his hunters will kill the beast. The assembly breaks up as Jack leads them on a hunt. Only Ralph, Piggy, and Simon remain. Ralph says that if he blows the conch to summon them back and they refuse, then they will become like animals and will never be rescued.

During the assembly Jack fully abandons the rules and codes of society. He promotes anarchy among the boys, leading them on a disorganized hunt for an imaginary beast. While Ralph is appointed leader for his calm demeanor and rationality, Jack gains his authority from irrationality and instinctual fear, manipulating the boys into thinking that there may be a dangerous creature that they should hunt. This behavior is dangerous; Ralph concludes that a focus on hunting will prevent them from ever leaving the island and seal their fate as no more than animals.