Mate you're the one that needs to learn some history that wasn't written by Electronic Intifada. "Palestine" was what the romans called the region of Judea, which Jews are indigenous to, and the region was virtually uninhabited according to everything from the ottoman empire's own census to the peel commission report. Even firsthand accounts of travelers such as Mark Twain and Arab historians such as Muqaddasi and Ibn Khaldun describe in detail how the region was so uninhabited the mosques were empty, and that the Jews were the only real permanent presence.
If you go back before 1947 there is not nor has there ever been a distinct arab ethnicity called "palestinians". Yasser Arafat was an Egyptian, and executive members of the PLO along with many other major arab leaders and historians have all publicly stated unequivocably that "Palestinians" do not exist and are a political fiction invented to attack the Jews. The region was passed from conquerer to conquerer until the Jews started buying land from the Ottoman Empire, which itself fell and left the land to the British Empire, where the League of Nations and United Nations explicitly dedicated it to be returned to its native people.
Even IF we were to grant that such a thing as a "Palestinian" existed though then by definition every resident of Israel AND Jordan would be a "Palestinian". After all the British Mandate stretched from the mediterranean coast to the far border of what is today known as Jordan, and Jordan was created at the exact same time as Israel. So if you think Israel was "stolen" by its indigenous people from colonialist arabs then you must surely think the same thing about Jordan.
As for your claim that this has nothing to do with racism... I suggest you look up the Mufti's close alliance with Hitler, his tours of death camps such as Auschwitz, and the fact that from the very beginning the arab nations surrounding Israel have openly said (in arabic) that they simply want to murder all of the Jews and finish what Hitler started. They're perfectly happy to publicly admit this as long as they're talking in Arabic. There's a reason they chant "Slaughter the Jews" in the streets of Sweden.