Well, obviously, the Palestinian people are divided among many different factions and parties. A part of this is a result of the occupation itself.
We have to consider that the Palestinian Authority, for example, isn't operating under conditions of democracy but under conditions of subjugation to the Israeli state. When we're talking about popular legitimacy, the occupation is the biggest obstacle to Palestinian democracy. It denies it explicitly.
When we're talking about popular legitimacy among Israelis for a Palestinian state, we have to remember that.... Why should Israelis get a veto over whether Palestinians have a state or not? This is not an issue for Israelis to determine among themselves but something for Palestinians to determine.