The UN has created many similar situations over the years, none of them have that distinction. Not Unique.Palestinian "right of return" is unique because:
The UN helped create the Palestinian refugee problem in the first place and as a result shares responsibility with Israel for resolving it.
And in Palestine, it didn't help create anything. There was a war brewing, it tried to step in, everyone on both sides ignored it, and its plan shares no real similarity with the outcome.
The UN passed a resolution which recognized Israel on condition that it allow Palestinians right of return.
Yes, Palestinians, not Palestinian descendants.
Israel can withdraw from the Unitied Nations and return to its status of disputed territory if its unwilling or unable to meet the terms of its recognition.
The UN does not grant recognition to nations. Not all nations are members of the UN.
Switzerland only joined in 2002, are you saying it wasn't a nation before 2002? The Vatican still is not a member of the UN.
The UN is not a world government.
Is 61 years of Israeli non-compliance with the terms of UN recognition, continued ethnic cleansing and war long enough? How much longer should Palestinians wait for Israel and the UN to abide by their "obligations" regarding them?
Israel has no obligations to the UN, the UN did not enforce its partition plan, it loses say in the matter. Lots of people and organizations had partition plans that also didn't come to be.
They also don't get to assign conditions.
So, tell me your position:
Are you entitled to lands you have never seen because your ancestors lived there, at the expense of the current residents who were born there?
Or are you not entitled to lands you have never seen regardless of where your ancestors lived?