Hmmm, the fact that Rudd tried and failed to carry out a difficult but fundamentally positive reform is not a very strong case against pursuing it again in the future, for better or worse political progress is almost always multiple failed attempts punctuated by small iterative steps forward.
The idea that Murdoch's influence is down to the consumers is pretty naive. The Murdoch media is so dominant that it has the capacity to poison every narrative, while one can seek alternative sources those sources struggle financially and can't market themselves to compete effectively. Added to this is the fact that their dominance means that nearly all incidental news exposure will be Murdoch, they are the papers on the stands, they are the news breaks after sports matches, they are favoured by social media algorithms. Not everyone has the time or inclination to put in the substantial daily work to combat this, Murdoch media dominance is a systemic problem, not one of individual choice.