So apparently in Geneva they blamed Israel for everything, cursed at the fence, and called Sharon a "fascist". And no criticism at all for the Palis.

The one-sidedness is partly because that's how many of these people actually think. But it's also because any criticism of Arafat or the Palis would "offend" the Palestinian delegation. Castigating Israel and giving Arafat a free ride is part of trying to drum up Palestinian support for the Geneva enterprise.

Similarly, if some peace plan gets support from an Israeli gov't (whether Likud or Labor), Palestinian support for it is then likely to decrease. The thinking is: "if the Israelis are willing to accept it, then it's probably a trick and we should be demanding more".