John, i think Khawaga made a valid point. We don't know what was first: egg or chicken. You claim that most of current israelis descend from different linguistic and ethnic origins. But Khawaga might be right saying 'they did live there originally and were dispersed throughout the world, mingling with Yemenis, Ethiopians, Europeans', and I would add, with Iraqis, Syrians, Argentineans, Moroccans, etc., etc., etc...
Instead of trying to find out 'who was there first, and who first started the conflict', why they wouldn't just conclude a peace and wouldn't live without killing each other every other day?
it is known, there is no right and there is no wrong in any conflict. When husband and wife strat fighting, hell you would never find the beginning of this fight, coz each side has his/her own vision of the conflict and each side has his/her own "truth". But the things are there is NO truth! And IF both husband and wife want to stay alive they have at least to stop fighting before they killed each other. Simple as that.