If the West Bank is considered to be "as much a part of Israel as Israel proper" this of course would definitely undermine the claim of Israel to legitimacy, in the light of the failure to provide the West Bank inhabitants (apart from settlers) with political and civil rights.

The desire of Israel is to transfer the territory to the "Palestinians" for a state. The Israeli's have made many attempts to do so all which have been rebuffed by the "Palestinian" leaders. The governance is in transition and is dependent upon the "Palestinian" leadership showing that they can provide public order and internal security which up to the present they have not been able to do. The citizens enjoy political and civil rights under the governance (such as it is) of the Palestinian Authority in areas A and B, the Israelis maintain authority in area C as a means of providing security for their citizens.