What elements of a dystopia are present in the selection from Gulliver's Travels?

Dystopia refers to the totalitarian society where everything is unpleasant and degraded. In the selection from Gulliver's Travels, where Houyhnhnm represented utopia on contrary the Yahoo society is a Dystopia. They "were known to hate one another more than they did any different species of animals", representing greed, hatred, filth and selfishness like humans. Representing nature of humans, if sufficient food were given to five Yahoos as which would be sufficient for fifty, each one would fall impatiently to have all of it themselves instead eating with tranquility and peace.