In 1964, Jordan controlled Judea and Samaria, and Egypt controlled Gaza (I would say "occupied", but as we know, the term "occupied" is a legal term referring to land that has been taken by one STATE from another STATE, and that's not the case here). The PLO didn't yet exist, and its founding would ONLY happen with the consent of the Arab world. Nasser was the most powerful ruler in the Arab world, and ruled the most powerful and populous Arab country (Egypt). King Hussein ruled the country with the most Philistines (Jordan). Going to the mat against them and claiming land that THEY controlled would be suicide for the Philistines- before they were even born. So while the PLO DID in fact mention that the entire land is one unit, it gave up ALL sovereign claims to Judea, Samaria, and Gaza (Article 24 of the 1964 PLO Charter) but claimed the REST OF ISRAEL- including Tosefta's hometown of Tiberias. It's ironic but true. And all of your mental backflips won't change that.
Palestinians report IDF airstrikes on Islamic Jihad targets in southern Gaza Strip (Haaretz)
from the article: While Livni is polishing her wording