Dominant culture will do what dominant cultures have done since Eve told Adam what to do.
Oz was founded on an industrial revolution recipe that hit its straps in Britain when the Arkwright mills came online. With it came a revolution in skills and national dominance, which caused a massive migration into factory cities, malnutrition, disease and crime....solution = convict and deport to Oz along with the superiority attitude.
It was not just Labor, but the most of the political parties who looked to preserve Anglo white face as the dominant species. The Irish immigrants were a hard sell given their anti monarchy stance and allegiance to Roman Catholicism, but the rest of the nationalities were a bridge too far, even if party policy spruiked otherwise.
