What thing bother Ralph most about the breakdown of order on the island What is the reason for the breeakdown?

Ralph faces all of his people leaving to go to the other tribe. Also Jack was taking over and was taking food and things away from him. Pretty much Ralphs biggest problem was stupid Jack. since jack like killed three people (piggy, simon, and the pilot). People only listened to Ralph at the beginning of the movie but then at the end people didn't listen to him at all. ALSO everyone was thinking about themselves and not about the whole group. hense the major problems and killings.