Joseph's casuistry is utter baloney. Security Council resolution 242 of Novermber 22, 1967:
"Affirms that the fulfillment of Charter principles requires the establishment of a just and lasting peace in the Middle East which should include the application of both the following principles:

"Withdrawal of Israeli armed forces from territories occupied in the recent conflict;

"Termination of all claims or states of belligerency and respect for and acknowledgement of the sovereignty, territorial integrity and political independence of every State in the area and their right to live in peace within secure and recognized boundaries free from threats or acts of force;

"Affirms further the necessity

"For guaranteeing freedom of navigation through international waterways in the area;

"For achieving a just settlement of the refugee problem;

"For guaranteeing the territorial inviolability and political independence of every State in the area, through measures including the establishment of demilitarized zones;"

Besides even the original General Assembly admitting Israel to the UN was conditional upon its compliance with resolutions. For example, resolution 194 (III):
"11. Resolves that the refugees wishing to return to their homes and live at peace with their neighbours should be permitted to do so at the earliest practicable date, and that compensation should be paid for the property of those choosing not to return and for loss of or damage to property which, under principles of international law or in equity, should be made good by the Governments or authorities responsible;"

The right of return of Palestinian refugees has been re-stated annually ever since.

All things considered, Israel's very own existence is illegal under international law since it exists outside the Law!