I agree that it's hard to get a firm grasp on the "Palestinians" demand. It's hard to get a firm grasp on what "Americans" demand of their government, and as we

I agree that it's hard to get a firm grasp on the "Palestinians" demand. It's hard to get a firm grasp on what "Americans" demand of their government, and as we see every election cycle, there are pretty conflicting demands in a polarized country. That said, the official representative of the Palestinians did have a chance to negotiate with the Israelis, received a generous offer according to Israelis and many outsider observers, and said no - walked away without a counteroffer. The standard Israeli feeling is that there simply is no practical way to reach a negotiated peace because of this, especially since Palestinian representatives since that time have less political will and "moral authority" among Palestinians. (And of course something that Israelis often miss is that Israel has spent 15+ years actively working against peace, so the lack of Palestinian leaders at this stage is at least partially because of Israel!)