Who is Urban Aborigines from Mutant Message Down Under and what is their importance?

Urban Aborigines are, according to both The Real People and Geoff (see below), Aborigines who have left the natural life of "The Real People" and have succumbed to the easy allure of the city - money, material success, and assimilation. They have, again according to both The Real People and Geoff, lost their true way and have become lost in a world they don't understand and where they don't belong. The author draws a parallel between these experiences and those of North American Indians, who have likewise fallen victim to North American cultural imperatives and lost their own ancient sense of identity.