In chapter 3 do you think that ralph's frustration at the boys was justified? why?

Ralph has every right to feel frustrated. The boys on the island are not like adults. They take the path of least resistance and abandon any constructive work needed to build a functional society. Jack is obsessed with hunting and killing. His hunters simply follow Jack because Jack is more intimidating than Ralph and Jack offers them "fun" instead of building Shelters. Ralph is learning that staying chief is more about politics and manipulation than it is about responsible leadership.