It seems to me that you don't know your neighbours, Salahdin who is mostly respected was Kurd. Georges Habbash was Chrisitan, Leila Murad was Jewish. Arab means speaking Arabic as mother tongue. No religion importance or ethnic origin. you could be Arab if you know better your neighbours.
Firebomb thrown during demonstration in northern Israeli town of Umm al Fahm (Haaretz)
from the article: Could there be an Arab-Israeli president? Yes, but not just yet