Uh... yah, and they are the descendants of Jews that were dispersed ~from~ Israel throughout Europe and came ~back~ to Israel. The Israelites most likely were more fair-skinned than even the Arabs or Egyptians. They were certainly whiter than the black Africans, which is what Megan is talking about. So what's the big deal?
Yes. The diaspora, when Jews emigrated to Rome, and then spread throughout Europe.
No, the Arabs and the Jews are more closely related than the native Jews in Israel and the Europeans. Both genetics and language similarities support this.