Though surely civilisation is contextual? The Romans and Egyptians undeniably had highly developed civilisations in which the Gauls and the Britons looked underdeveloped, yet they are still undeniably civilisations.
A group of people communicating their entire culture, society and laws through word of mouth is undeniably more developed than a civilisation unable of doing so and has to resort to writing stuff down.
Many of the dreamtime stories are as complex and detailed as say, the Odyssey, Beowulf or the Epic of Gilgamesh. They also, as I've said, have a complex legal system, not just tribal "common sense", you're just being ignorant. > Might I suggest you kys?
Real mature, really sounds like you're winning this debate
Your ancestors were not aryan, they were not nordic, you are not of Prussian ancestry, you're just descended from a group of peasants, arguably just as or less developed than the aboriginals.