Why the "Two-State Solution" Wasn't--and Isn't--A Go

Here, in a nutshell, is why it has always been a non-starter (my bolds):

An honest appraisal of the historical record indicates it was never possible for one principal reason, the Palestinians have never been prepared to share any part of the land they claim as their own. This irredentism is based in large measure on the view that Jews have no place in the Islamic world – except as second-class citizens (dhimmis) under Muslim rule. No UN resolution or State Department formula will change this reality and therefore it is time acknowledge the two-state idea as presently conceived is dead.

Given that reality, what he have here is an either-or situation. There can either be an Israel or a "Palestine." Until and unless the Islamic world can renounce core Islamic teachings/texts, there cannot be both.