In a Utopia, everyone must live in harmony and they are able to understand one another.
("An imagined place or state of things in which everything is perfect. The word was first used in the book Utopia (1516) by Sir Thomas More.")
In order for a Utopia to form, everything must be perfect according to definition; however, no place on this Earth is perfect and follows the definition of Utopia. It is impossible for everyone to understand one another and live in sync as everyone is different in their own ways. Everyone must have the same ideals and a Utopia is a place where everything is happiness; therefore, crime, debate (arguing), and war can't be existent. BUT, there is a possibility of reaching somewhere close to a Utopia. It's just an impossibility to reach such perfection because there will always be somebody who will do evil/wrong. There will always be anger and sadness in this world. It's human nature.