What if the Palestinian Arabs who have lived for decades under the heel of the modern Israeli state are in fact descended from the very same "children of Israel" described in the Old Testament?
And what if most modern Israelis aren't descended from the ancient Israelites at all, but are actually a mix of Europeans, North Africans and others who didn't "return" to the scrap of land we now call Israel and establish a new state following the attempt to exterminate them during World War II, but came in and forcefully displaced people whose ancestors had lived there for millennia?
What if the entire tale of the Jewish Diaspora -- the story recounted at Passover tables by Jews around the world every year detailing the ancient Jews' exile from Judea, the years spent wandering through the desert, their escape from the Pharaoh's clutches -- is all wrong?
Also, genetics testing has demonstrated that the most direct descendants of the Biblical Hebrews of ancient times are today's Palestinians. This is common sense. The Semites split into Arab and Jew with the split in Abraham's house between Hagar/Ishmael on one side and Sarah/Israel on the other. This occurred too recently (in evolutionary terms) for random mutation to significantly change either group, and both groups discouraged intermarriage with other peoples until just a century ago, so in theory both groups should still resemble each other in stature, build, and skin tone.
Clearly, the Palestinians do look a great deal like their Arab brothers.
The Ashkenazi, equally clearly, do not.