crossposted again...

"But those other Arab countries don't have that land any more"
Nope- LOOK at the map of Mandate Palestine, and tell me that Jordan does not have a big ( 77%) chunk. And THAT is if you give Israel the ENTIRE West bank. So, go talk to the Jordanians about what is owed to the Palestinians- Though you need to remember that when Jordan had control of the West Bank, they made NO effort to create a "Palestinian State"