It would be healthy for Muslim Arabs to be intellectually honest and admit their Grand Mufti of Jerusalem’s role in killing Jews in Europe and killing Jews in British Mandate Palestine.
First the Arabs (not Christians) have to pull their collective heads out of their arses and begin to join the human race for all it’s good.
Second, they have to learn this most magic of words and concept in the Western world...COMPROMISE.
Unlikely, as they are mired in a 7th century socio-political system based on hate of all who are not like them and masquerading as a religion.