IMO, you take the deal, get what you can; then continue to negotiate for what you want.
Isn't that what happened at Oslo?
It was supposed to be the start of a process leading to the formation of a Palestinian state. At the time of Oslo, 125,000 Israelis lived in settlements in the West Bank and Gaza.
By 2000, there were over 200,000, and a similar number in settlements in East Jerusalem.
Talking is all well and good, but realistically it's not going to get the Palestinians anywhere.
(Not that I approve of their current tactics, anymore than the Israeli response)