"Only with the British mandate did the arabs on mass move out from the Damascus region to the Levant. ". ....... really? so you think no Arabic people built a town before Jews invaded and shared with Arabs what is called Jerusalem, that no Arabic people existed in what was referred to as Palestine in Roman historical records. the local area was referred to as Judea but the whole region was Palestine and all Arabic tribes and Jewish tribes were class among the greater semitic culture with languages sharing a common root.
so you want to blame the Yanks for the Gaza War? what a dodge. Israel keeps the US as a proxy, if you want to use the word, as their backup to add bigger violent threat to their own aggression.
Since partition the Jewish forces have attempted to destroy all Muslims and Christians living in Palestine., i.e. the West Bank and Gaza and the refugee towns in Jordan, Lebanon and Syria. Egypt became compliant after the 6 day war.
now the Israeli intolerance of their neighbours has come to full ethnic cleansing. the destruction, the final solution of Netanyahu's Orwellian War.