More Australians are becoming less religious, so whatâs with our PMs? Weâre sorry, this service is currently unavailable. Please try again later. Dismiss May 2, 2021 â 5.30am May 2, 2021 â 5.30am Save Normal text size Advertisement David Day, one of Australiaâs foremost historians and biographer of Curtin, Chifley and other prime ministers, makes no bones about it. When it comes to their religious beliefs, we have never had a prime minister like Scott Morrison. âDeakin had some strange religious ideas,â he says, âand many other PMs have been genuinely religious but none, including Deakin, crossed the line and made religion such a central part of their political persona. Only Morrison has breached the long accepted standards about Australiaâs secular politics.â