As an Aussie, that c-word thing isn't really a thing in my experience, at least not in the urban environments I inhabit. (It may be a thing in the bush.)
We tend to be "direct" and generally have no fear of speaking truth to authority: the whole "OMG we can't indict the former President" issue with Trump is confusing down here: politicians and people in positions of responsibility are held to a HIGHER standard of behaviour, not lower, and they'd be the first to be tapped on the shoulder (or we expect them to be, and would be asking why they haven't been yet).
Indeed. Derogatory would be "Pommie bastard."