AP:
As for your completely erroneous question, no, because it seems by most evidence that there was no one here except Kangaroos and other wildlife when the Aborigines forebears came here so they weren't invading another culture's land or stealing it.
Well, that seems to suit your argument, doesn't it? Try some research on the Mungo People. According to my "most evidence", they were here before the aborigines arrived, and do not share DNA with them. I believe that would make the aboriginal arrival an "invasion" as well.
That is
never discussed in polite company though, is it?