Let me simplify.
Instead of " He doesn't seem to have done anything which would deserve so much scorn" you could simply say " He doesn't seem to have done anything.".
Of course that is not entirely true. He is known for his running prowess and many other things totally irrelevant to a politician job. He dutifully exploits every photo opportunity although he obviously far from relishes them. Just looking at him, squirming whilst putting on an act in front of the camera, is an experience of discomfort I have rarely seen in someone so much in the public eye.
But all that could be, and perhaps ought to be, really tolerated did he have an intellectual stature up to the job he aspires to. Unfortunately, his understanding of issues of importance seems to be more in terms of populist memes than imbued with depth and substance. And when the delivery of the memes is so inadequate, I think, and hope, that it will be reflected in his lack of success at the polls.
Just to avoid being typecast, I think that Julia is the worst PM Australia has had in my memory. She stands out as one that has totally lost what her party ideology stands for and I so much regret having voted for her.
I will revert to informal voting in the next elections, as I hate when politicians claim a mandate because of the election results. The compulsory voting in Australia, and the fact that publicly encouraging informal voting is not allowed, makes that claim rather meaningless.