1. "Australia isn't yours' to reclaim"/"You stole it from abbos"
Australia is two things: a land and a nation.
Under natural law, you do not have a right to that which you can not defend, and Europeans acquired the land now known as Australia by right of conquest. By your own admission, "you stole it from us", you admit it is no longer yours and is currently ours'. If you wish to take it back, form an army and let's have a round 2 because we're not handing it back. Perhaps if you win, everyone who isn't Aboriginal will fuck off and Aboriginals will have Australia to run by themselves.
Secondly, did those first Australians steal petrol stations and liquor stores from Aboriginals? Did Australians steal hospitals from aboriginals? or highways? universities? farms? coal mines? football stadiums and cricket grounds? parliament or police stations?
No. They were not conceived by Aboriginals, nor were they realized by Aboriginals. Australia was conceived by generations of Australians' blood, sweat and tears, and realized by generations of Australians' blood, sweat and tears.
Australians did not steal Australia from Aboriginals, because Australia as a nation was never aboriginals' in the first place.
r8 bls