The bottom line is, after 1900 years as a Scattered People, and after being slaughtered nearly to extinction in Europe in the 1930s and 1940s, some sizable percentage of the world's nations and peoples figured that the Jews ought to have a homeland again...
And, given Palestine's tremendous Jewish history and ancient spiritual and legal claims, Palestine drew the short straw, to make room for that new Homeland...
It's not as if the existing residents were doing anything particularly remarkable with it anyway, and parking the Jews there seemed the lesser of various evils at the time...
Trouble is, it was done badly, by the fledgling United Nations, and some of its more bleeding-heart members, and those co-conspirators (co-founders) simply folded their tent and walked away from the situation before the job was done - leaving the principal players to go at each others' throats...
Had the UN possessed more teeth and courage at the time, it might have carved-out a very different future than they one those early UN types bequeathed to us...
The UN only has the power its members give it, you cannot just blame the UN for the conflict. Back in 1947, the UN had only been in existence a few years. They had no resources to force the Partition Plan on the people in Palestine. When Israel was admitted as a member nation in 1949 after her representatives agreed to abide by the UN Partition Plan and the resolution calling tor the refugees to be allowed to return to their homes, the UN had no way to force Israel to abide by these agreements and resolutions which she has yet to do, after the passage of 64 years.
There are a few things that she doesn't mention because she has wished for the destruction of the JEWISH STATE many times
Right of Return of Palestinian Refugees:
International Law and Humanitarian Considerations
When Israel was created in 1948, Arab states and Arab Palestinians attacked the Jewish community in Palestine and the Jewish state, vowing to "drive the Jews into the sea." They lost the war however, and some 725,000 Arab Palestinians fled or were expelled from the area that became Israel. Thousands of Jews were displaced from areas conquered by the Arab forces as well, and some became refugees for a while.In December 1948, UN General Assembly Resolution 194 called for return of refugees who were willing to live in peace with their neighbors. Jewish refugees, including refugees from Palestinian Arab areas and hundreds of thousands of others expelled from Arab lands, were absorbed into Israel and did not claim refugee status. Arab refugees were placed in camps.
Palestinian Arabs claim that any peace agreement with Israel must allow the descendants and families of these refugees, numbering about 4 million, to return to Israel. This is the position adopted at present (2006) by the moderate Palestinian leadership of Mahmud Abbas, enunciated in the "moderate" Palestinian Prisoners' Document and presented as well by Palestinian negotiators at Taba in 2001: In the Palestinian "compromise" proposal, all refugees would return to Israel gradually. Jews would become a minority in their own state. Return of the refugees would put an end to Jewish self determination and the Jewish homeland, yet Arab Palestinians and their supporters insist that this solution is "justice" demanded by international law. This stand has been reiterated many, many times by "moderate" Palestinian officials
Which is exactly what the Pro Palestinian wants. If it can't be done from the outside ( A War) it will be done within
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;
Notable in this wording, is the fact that a "right of return" was not mentioned, and the reference to "refugees," rather than "Arab refugees" and "governments," rather than the government of Israel. This implies that the framers had in mind the rights of Jewish refugees in Palestine as well, and would also be applicable to Jewish refugees forced to flee Arab countries as a result of the conflict. The number of Jews were forced out of Arab and Muslim countries because of the conflict is about equal to the number of Arab Palestinian refugees.
The above also speaks of them wanting to live " At peace with their Neighbors" lol
Obviously, the above is not the entire post
Palestinian Refugees Right of Return - Zionism and Israel - Issues and Answers FAQ