Why do you find it so unimaginable? You have fallen victim to the fallacy that the "palestinians" work so hard to present to the world -- that they are a united group, all rowing the boat in unison. Nothing could be further from the truth, and you know it. The "palestinians" have long spent as much time killing one another as they devoted to their life's work and passion of killing the Jewish people.
I have frequently wondered if there is some sort of horribly genetic defect that drives Arabs to terror and violence. Take a good, long look at the Arab world. Violence and terror; violence and terror; over and over ad nauseum. That seems to be what Arabs live for. Nothing of any worth or even bearing some semblance of humanity has emerged out of the Arab world in ten centuries. Instead of blaming everyone and everything for your situation, have you ever thought about turning your gaze inward?
That's why the Arabs hate the State of Israel so much. We embody everything that you do not. We have grown in leaps and bounds, whereas the Arabs have marched steadily backwards.
The problem is not the Jews. The problem is you. There is much the Arabs could learn from us, yet you steadfastly reject every opportunity to do so. They you turn around and blame the Jews.
It's got to be genetic. Possibly too much Arab in-breeding. Could also explain the extraordinarily high incidence of genetic defects among Arabs. The Arab predilection for violence and terror is just another genetic defect.
That's a gift. I'm telling you what all Arabs want to hear -- nothing is their fault. Ever.