Slavery in Australia

Our PM, Scott Morrison, says there was never slavery in Australia.  Meanwhile, in the UK, an episode of Fawlty Towers entitled Don't Mention the War, is banned then unbanned, because it's 'offensive' (missing the whole point of the episode).   A cartoon from Broelman, showing Basil Fawlty, Manuel, and Scroto;  and a picture from the Western Australian State Library, which Fakebook banned 'for nudity' then unbanned later.