I think we need an Alternative PM....

Am I the only person who thinks David Cameron has recently shown that he's about as consistent as Katie Price's love life?
Cameron indulged in getting off his usual high horse to climb onto an even bigger one as he voiced his outrage yesterday. This was over the Supreme Court's decision to allow registered sex offenders the right to appeal for removal from the register of sex offenders. He said it "seems to fly completely in the face of common sense", which is about as rich as the rest of his cabinet.  
Obviously, the issue raises many areas of debate. Many sex offenders have been shown to have a pattern of behavior that is very ingrained, and easily disguised, which means those up for appeal may be difficult to analyse. However, even for the Tories, it should have crossed their minds that the highest court in the land may have a point, and that individual cases of human rights should be dealt with on an individual level.
It could almost be admirable to have a Prime Minister who stands up to the rights of victims of sex offenders. However, Cameron has, this week alone, demonstrated that he is, in fact, still a twat. On Prime Minister's Questions yesterday he was questioned over his government's spending cuts, which have meant for one daycare centre, a rise from £6 to £58 a week in fees. 
It was also decided yesterday that the AV referendum will go ahead on May 5th, as it secured royal assent today. The beautiful thing about this campaign is that it is not party specific, far from it. Even Ed Miliband shows his enthusiasm for the bill, even though some journalists have speculated that it could be bad for Labour to show support as it may look like a validation for Nick Clegg's decision to go into coalition. However, that hasn't stopped Ed from wanting electoral reform (sorry BBC).
However, David Cameron has spoken out about how he will be voting 'no'. His reasons shall hopefully be made clear over the next few weeks, but I don't hold much hope for any persuasive arguments. Apart from the cost of the implementation of AV, there are no strong arguments for the 'NO to AV' campaign. I may be biased, but I'm campaigning yes for a reason. Well, actually, several reasons. However, one assumption that I have made is that the main reason for Cameron's decision to oppose the referendum must be due to selfish reason. Is he trying to withhold the public from a fairer democracy and more proportional voting system? He has been quoted saying that the Alternative Vote is 'a recipe for letting parties who come in last place hold power'... can anyone explain how this would be the case?
I think if Cameron wants to make the wrong decisions, look like a pompus idiot during Prime Minister's Questions and make cuts in the wrong places - that's fine. Well, it's not. But to pick and choose his moral high ground and have such a reaction to the Sex Offenders register is tiring.