I agree these people were experiencing a form of slavery. These pictures demonstrate the fact. But in relatively far flung and lawless parts of Australia and I feel political corruption was involved as well as illegal practices by individuals. This is not wholesale and unrestrained chattel slavery as practiced in earlier times in the British Empire or the US.
Part of the reason we are aware of it is that there were abolitionist organisations and unions that stood up to it and called it out for what it was: illegal and inhuman.
Antman we still have slavery in various forms operating all over the world. It’s not legal, but it happens. What we are seeing above is similar.
Slavery still exists in parts of the world yes. Denialism of the history of slavery in Australia also exists. "far flung and lawless parts of Australia" is where our indigenous population mostly lived - that's a pathetic excuse.
Of course we also sailed out to the Pacific islands and press-ganged 60000 locals to come to Australia to work as indentured labour - I suppose that was "far flung and lawless" too, despite them crossing through Australia's borders.
Slavery existed here Djevy and it was as disgusting as anywhere else in the world.