For sure he is not a fool. However, there are plenty of fools around who will believe this statement, which of course is why he made it.
http://www.freerepublic.com/focus/news/2953635/posts?page=13#13
Speak of the Head Fool, and he appears in motley riding a hobby horse.
Shimon Peres - The Chris Christie of Israel.
A fool as well as delusional.
Even if Mahmoud Abbas is sincere there are too many homicidal fanatics inside and outside the territory to ever tolerate coexistence.
Taqiyya.
Make a deal with an islamist, eventually have your throat cut.