Kondor -
Israel would never be asked to "give up Jerusalem". The issue only involves the Old City, and even then it would be shared under UN supverision.
Understood, Saigon. I simply do not foresee circumstances under which Israel would cede any aspect of control, sovereignty, oversight, whatever, which they now possess, in connection with Jerusalem - East, West, Old, New, whatever.
Whomever controls Jerusalem (Jews, Christians, Muslims... Byzantines, Franks, Arabs, Turks, British, Israelis, whatever) is considered (by tradition) to have a sacred trust to make the Holy Places accessible to all and to provide safe passage to-and-from same.
The Jews (Israelis) are every bit as capable of fulfilling that role as anyone else.
Given UN intransigence and ambivalence towards Israel at best, and UN General Assembly animosity and bias against Israel at worst, and given the failure of UN peace initiatives and land-for-peace deals over time, the Israelis have little reason to trust the UN.
Given that the Jews waited 1900 years to reclaim the Holy City and finally achieved that as a result of the 1967 Six-Day War, and given their poisoned relationship with the UN, my own 'take' on this is that UN control of Jerusalem - any part of it - is a nonstarter.
- forgotten by a world much-relieved to see those all-but-insane and combative folk dispersed and neutralized;
At times in history people said the same about Jews; not to mention Kurds, Sikhs, Hmong or East Timorese. Of those peoples - which ones have disappeared and been forgotten?
None of the examples that you provided had disappeared.
The Jews held-out because they had a unique and advanced (for ancient times) monotheistic religious belief-system which allowed them to weather a two-millennia -long Diaspora.
The rest because they always had at least some land on which to dwell as an organized people.
The so-called 'Palestinian People' are - organizationally speaking - an artificial construct which has only surfaced to distinguish them from their otherwise entirely indistinguishable regional ethnic brethren in recent decades - insufficient history and depth and traction to endure a Disaspora of 200 years, never mind 2000.
Many 'Losing-Side' populations and population-fragments end-up assimilating into the surrounding countryside and quickly disappear as a separately distinguishable 'People'; including many not mentioned in your earlier examples, such as Canaanites, Philistines, Carthaginians, Assyrians, Samaritans, Scythians, Parthians, Sumerians, Akkadians, etc..
Genetically, they're still 'there', so-to-speak - embedded within the present-day populations of their former regions -
but they no longer exist as a functional (or even nominal) polity, from an organizational standpoint.
Such is likely to be the fate of this Johnny-Come-Lately artificial construct known as the so-called 'Palestinian'. They will still 'be there', so-to-speak, genetically embedded in the surrounding countryside populations. It's just that they will have disappeared off the scope as a functional (or even nominal) polity. Insufficient history, depth and traction.
Of course, I could be entirely wrong... full of $hit clean up to my ears... over this, but, stepping-back for the 5000-foot view, and looking at the multi-generational, multi-century long-haul, my money is on me being more right than wrong, on this one.
Our descendants will know whether there was any merit to such speculation, but we won't live long enough to learn the answers.