You are right, but it still doesn't explain why no one can be called originally Israeli. If you're born and raised there, with Israeli parents, what does it take to be one then?
Take your Arab propaganda elsewhere. He said he's originally Israeli, and who are you to dispute that? With yourself being an Arab, I can go back to say how you've stolen the land of the Assyrians, Kurds, Persians etc. You can see how ridiculous it sounds.
And regarding the massacres, it goes both ways. If your eyes were not polluted by the dust of subjectivity, you would see this as well.