>>509792353 (OP)they literally did
first many drunk irish convicts fucked/raped the abo women and then those mixed kids born from single mothers were taken out of their tribes (before they get killed/raped/cannibalized by the tribe)to be adopted by white families and got bleached later during the white australia policy
there is literally a whole stereotype of a full celtic-looking person claiming their 5% of abo ancestry to get gibs, unlike the native american princess myth of the US the abo ancestry seem more likely to be true because its documented from the last century