And there it is Menzies said Robert Menzies: “We took the name ‘Liberal’ because we were determined to be a progressive party, willing to make experiments, in no sense reactionary but believing in the individual, his right and his enterprise, and rejecting the socialist panacea"
Progressive means to advance civilization for the better, unlike the renewable bull shiet that is regressive.
Turnbull is not REJECTING SOCIALISM, he embraces socialism refer to his hand shake with Macron.
Menzies would most likely associate Turnbull with communism/socialism.