Following the 1948 War, historian Benny Morris notes that Palestine Arabs were not yet called Palestinians. Furthermore, the Arab powers had no interest in creating a Palestinian entity. Instead, the Syrians, Egyptians, and Jordanians seized control of the areas they occupied. In 1950, what was then called Transjordan annexed areas in East Jerusalem and parts of Judea and Samaria it captured during the war, parts of which had been allocated for an Arab state. Only the the United Kingdom, Iraq, and Pakistan recognized the decision.
During the 19 years Jordan controlled the area it was not referred to as occupied territory. The Palestinians did not demand the end to that occupation or the creation of an independent state. Likewise, the United Nations did not take any action to condemn the land grab.
It was during this period that the area west of the Jordan River began to be referred to as the West Bank. This was an entirely new appellation for the territories based solely on their geographic proximity to the river. Previously, as in the UN partition plan, they were still called Judea and Samaria.
By 1959, the UN, without discussion, essentially endorsed the annexation and began referring to the areas as Jordan. It was only after Israel reunited Jerusalem and captured Judea and Samaria in 1967 that the UN settled on the term West Bank.
Lewis argues the idea of developing a distinctive Arab national entity Palestine in the area occupied by Jordan did not occur until after Israels victory, and Jordan withdrew its claims and ceded representation of the Palestinians to the PLO.
https://jewishvirtuallibrary.org/origin-of-quot-palestine-quot
Israel basically liberated Palestine in 1967. If the Jews had lost in 48, 67, 73 there would be no Israel and no Palestine, the Arab nations would have taken the land for themselves.
Your OP makes it seem like you have a problem with immigration. Should Russian Jews have been sent back to Russia? You might want to add more info, just saying.