i think you'll find though that there is a lot more complexity to the origins. for example the proportions of neanderthal and denisovan genetic material is actually different in aboriginal australians and my understanding is that there is now substantial debate around the out of africa theory.
technically you are right though - but on that basis noone much is indigenous. but i think you are splitting hairs for the sake of a debate. where it is tricky - and i accept that - is that we look back at history with the eyes of today.
