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.
I can vouch for this. I just bought a TNG era uniform from them and it's quite nice. Got every piece except boots, which they don't sell.