How does Yahoo society function (i.e. leadership, mating, war)? What is Swift trying to say about human nature?

Yahoo were beings of low morals, who possessed obscene and treacherous thoughts. The mud which covered their skin were demonstrations of our disgraceful personalities. Swift depicted the Yahoo’s lack of courtesy. They warred with each other unsystematically, matted with other spontaneously, and the leader was wiped with mud comfortably. These vanity were no difference from the way civilized people lived. The guerrilla tactics, the promiscuous marriage and scandals, and the earthly possessions man so desired. Human nature is a collection of idealistic beliefs, which were twist of logic, e.g., craving of diamond and gold, that were accepted as conventions.