Isreal: Can an Arab be an ethnic Jew Simultaneously?

I am asking, because I was certain that ethnic Jews come from the line of Isaac and Jacob, while Arabs come from Ishmael. Correct?
Update: Mythology? so you are saying there was no Jacob? no tribes?
Update 2: Good lord- can I ask a question out of curiosity? does it have to be about you? good grief. yes, our arguments made me think of it- and now I got some clarity- but what you just did was silly.
Update 3: lol- it's cool though- i was wrong in thinking there was no way you were an ethnic jew.
Update 4: thanx all.

Paperback- you and I have spoken before- always a pleasure. I'm sure i will be back with more questions for Israel.
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