It would be nice for the Palestinian Authority to prove Schumer wrong by suggesting peace terms that are reasonable along the lines of what was offered to Arafat by Ehud Barak. But sadly, I suspect Schumer is more right than wrong in his opinion.
That is ridiculous. A number of Israeli negotiators in the negotiations there had outright admitted that the offer was unfair after the fact, this should absolutely not be a baseline position.
Do you have a link to something that states that a "number of Israeli negotiators" thought the offer "unfair?" I don't agree with such alleged negotiators, even if your claim is true, but I would be interested in reading what they had to say, and why they thought the offer unfair.