"The prohibition".."in the UN Charter only applies to lands which are (or are part of) sovereign states" - You are legitimizing all attempts at land grabs when a country or Empire breaks up and sovereignty ceases. When Czechoslovakia broke up the surrounding states could not yell "Yippee!" and start feasting on the carcass. "lands which are contested or disputed" - when there is civil war. No civil war in '67. "The West Bank and the Gaza Strip have not been parts of a sovereign state since the defeat of the Ottoman Empire" - All the Mandate Powers had sovereignty vested with them. They HAD to, otherwise how could they hand sovereignty over to their newly-formed states (e.g. Syria, Jordan, etc.)? "2) The Palestinians were just as engaged (as irregulars) during the Israeli War of Independence as were the Arab armies." - Arab and Jewish Palestinians were involved in a civil war since Dec '47 i.e. you are twisting your history by only openining your calendar at 14th May.
Palestinian reportedly shot dead by Israeli soldiers after approaching Gaza border fence (Haaretz)
from the article: Haniyeh blasts Rice for bringing 'perilous vision' to Middle East