Being related to someone, having that biological connection to a mother who has given birth to you, is what is called the primary bond. This event of creation is our connection to the human race through thousands of years of evolution. It is the innate and emotional blood-bond and instinctive mother-child relationship. The biological/genetic connection to a family, to a mother and a father, is highly important in any society. The basis of any successful society is the family unit; it is on this basic foundation that a society establishes itself, and has done so since human society began. Aborigines and Moari have always known this.
Sometimes we just need to get back to the basics! Perhaps Western society just got too complicated.