The Oslo accords were intended - in the words of Rabin - to give the Palestinians 'less than a state', and arguably the division of the West Bank into Areas A, B and C have allowed for the expansion of settlements in the latter.

Whether the 1947 partition was accepted as a final state depends on who you ask, it's fairly clear that prominent figures viewed it as a stop along the way to a more comprehensive settlement. Take Ben Gurion ("After the formation of a large army in the wake of the establishment of the state, we will abolish partition and expand to the whole of Palestine.") or Chaim Weizmann ("partition might be only a temporary arrangement for the next twenty to twenty-five years"). Menachem Begin's Herut continued to use the slogan 'Both banks of the Jordan River", and this language is reflected in Likud's founding charter.

Not just 1947, Jews have been been in the area continuously and have bought land many times. 27 million dunams, which is equivalent to about 7-8 million acres if I'm not wrong, but were attacked since Jews are somehow an exception for owning land. During the same time period Israel was created, Lebanon, Syria, Iraq, and I believe 2-3 other Arab Muslim countries were created, yet those countries were not attacked.