It's a question of attitude and goes back to the religious point I raised some time back about the evolution museum and the resident astrophysicist. When questioned as to how he could be a scientist, believe in the scientific method of evidence and reproducible experiments and so on, and yet believe in the literal words of the Bible, he replied that when there was any conflict, the Bible trumped science. That was just the way it was for him. Science had to be wrong because the Bible couldn't be.
So too with the Carbon Tax. If it is indeed a tax, then when Julia Gillard said that there would be no Carbon Tax under a government she led and subsequently introduced one, then she broke a promise - or lied.
Tony Abbott made a great deal of headway on this.
For some people, it is a matter of faith that their chosen party, sporting team or philosophy must always be right and any opposition wrong. For these people, there can be no possible situation where Tony Abbott is right and Julia Gillard wrong. It's impossible. Therefore there must be some other explanation, or those who keep on supporting what cannot be right must be somehow unable to understand.
It's often the way that only a few true believers can see the whole truth and the 99% have been somehow sucked in.
You'd think that the documented evidence that even Julia Gillard was calling the tax a tax, therefore admitting that she had broken her promise, would be enough, but no…