Possibly because their children were not being murdered for sport by Jordanians and Egyptians.
Unlike their current occupier.
Could the truth be, Georgie, that those Arabs didn't care that their fellow Arabs (Jordanians and Egyptians) were governing the areas, but that they could not stand to see the Jews governing them? My goodness, hasn't it sunk into your head yet that the Arabs (actually those who are Muslims) want the entire Middle East under their control, and they are having a fit that the Jews are governing one tiny parcel of land compared to the enormous acreage which the Arabs have? Have you actually ever seen a map of the Arab world with Israel being such a small dot on the map?
Does your definition of "one tiny parcel of land" equate to all the land between the Mediterranean Sea and the Jordan River, Hossie? There are many more Arabs in the Middle East than Jews. In 1948 one third of the citizens of Palestine inflicted a Jewish state on their neighbors by force of arms. That historical fact is what most of the world is waking to today.
Btw, do you happen to know the ratio of Jewish voters in the US compared to the ratio of Jewish money supplied in US elections?