It's a silly notion to expect Israel to go back to that pretty much arbitrary document. If the Arabs wanted those borders, then they should have never launched their 'War of Annihilation' when the Jewish refugees declared statehood in '48.
Every single one of Israel's Arab neighbors refused to accept the new state and launched their entire military resources into an un-instigated conflict against an abused and desperate people at the time of their greatest suffering and need. That was a low, cowardly move on the Arabs' part, and Karma dealt with them quite appropriately by allowing the Israelis to decimate the attackers. The victory came at a cost of many Jewish lives, when 6 million had already just been mercilessly wiped out by Hitler and his Arab henchmen that did the Nazi bidding in the Middle-East at that time. (This is all known and widely accepted historical fact, not any sort of speculation)
Since the Jews were able to secure a favorable outcome in the face of that sneaky, underhanded aggression, the prior borders were automatically forfeit. Unless, of course, someone can bring all those murdered Jewish refugees back to life and restore all their progeny to boot.
Further, the Arab political and religious leadership all understand full well the sheer impossibility of that insane and unjust demand. That's precisely why they demand it! If they wanted peace, they would ask for something more realistic - say inter-state cooperation in spheres of technology, energy, education, medicine, and agriculture - something that could actually help the Palestinian Arabs, and something Israel and the Jewish people would gladly agree to in return for peace. Instead, they make impossible demands that would literally cut towns in half and strand entire Jewish populations outside of the IDF umbrella of protection. Asking for 1967 lines is like sending Jason to seek the Golden Fleece - a desperate suicide quest that he's not expected to come back from alive.
So if I had the power, I would target the Palestinian education system (secular and religious). We will never have peace, until a young generation of Palestinian Arabs wakes up to the extreme, religious-zealotry obsession of their parents, and actually reaches out for peace to their Israeli counterparts...