As far as disengagement is concerned, in retrospect, there's no question that it was a mistake, in terms of Israel's security and defense. But I hesitate to call it an out-and-out mistake - without in any way minimizing the horrible human cost to the families who were uprooted - because I think we learned something we could only have learned by doing it. What no one can reasonably deny now is that the Right was right.
As someone who used to be left of center, I always believed that the Palestinians wanted the same things we did - that they sought two states for two peoples; that they wanted a country just like we did; that they wished for their children and grandchildren to flourish, just like we did. Disengagement proved to me beyond a shadow of a doubt that I was wrong - tragically wrong, but wrong nonetheless. Because what they had was an opportunity to begin to build some sort of autonomy. And it became clear that this is not what they had, or have, in mind. They are much more intent on destroying us than they are on building themselves. They're much more committed to our not having a future than to their having one.