What on earth makes any part of Israel "Palestinian"? 

Did they ever occupy the land exclusively? No!

Jews have been their as long as they have. If Palestinains can live there, so can Jews!

At best, these are disputed lands not occupied lands. 

The West Bank and Gaza fell into Israeli hands when their neighbors sought to destroy it in 1967. The Arabs lost the war and any right to say what happens In those areas. 

Israel never agreed to return to pre-1967 borders. The fact that the UN wants that is not surprising given the number of Arab states at the UN and those that depend on them for oil

Israel should have long ago annexed whatever portions of the lands it captured. It didn't do so in order to appease its allies and neighbours. I hope those days are over. 

The Palestinians are crying for the loss of a state they never had. They were never alone on those lands and shouln't pretend that they were.