Looking back in the history of the Middle East in the decades prior to Israel’s rebirth as a sovereign nation, the Palestinians were simply descendants of Arab criminals and social outcasts rejected by the rest of the Arabs living in Egypt, Syria, Saudi Arabia, Lebanon, Iraq and even Kuwait (none of those countries ever existed at that time). The Palestinians are foreigners to the Jews who have been inhabiting the Holy Land in small numbers for millenia.
Actually, the palis are the vermin of the muslim world. NONE of the other muslim countries wants them but they all secretly support the actions of the palis against the Jews.