What are they obligated to agree to? If I kick in the door to your house, what right do I have to discuss which half belongs to me?
Israel should have to surrender all of their illegally-occupied land and at the very least retreat to the UN-approved 1947 borders.
The average age in the Gaza Strip is 18. Do you think that might have anything to do with Hamas not acting “grown up”? What do you expect out of one million teenagers you locked in a cell?