One really REALLY big problem here is that most of the Palestinians, especially some of the supporters of terrorism, and many of the Arab states believe that the only solution is for the Palestinians to have the whole disputed area. They do not include the jews in their plans for the future of the country. That means, although they do not say it out loud, that they are in favour of a massacre of all jews. That's genocide.
The world will not go there again.
If you are talking only of the West Bank, that problem was caused directly by King Hussein of Jordan in the 6 day war of 1967. Golda Meir told Hussein plainly that if he did not attack Israel, he would be left alone. He chose to attack ( he was lied to by Nasser of Egypt) so the Israelis regarded the bit of his country to the west of the Jordan as fair game, and took it all, to give themselves a defensible border instead of having a country which was actually only 9 miles wide in the middle bit.
I am not jewish, but I have lived there - as a diplomat, hence neutral but fairly well-informed