We already did. The bible says that ashkenazi “jews” are not really jews (Genesis 10:1-5), their own encyclopedias admit that they are not jews, their own scholars/professors, almanacs, etc.
Oh, and I forgot about this:
Leaked report: Israel acknowledges Jews in fact Khazars; Secret plan for reverse migration to Ukraine
“...Israel seems finally to have thrown in the towel. A blue-ribbon team of scholars from leading research institutions and museums has just issued a secret report to the government, acknowledging that European Jews are in fact Khazars. (Whether this would result in
yet another proposal to revise the words to “Hatikvah” remains to be seen.) At first sight, this would seem to be the worst possible news, given the Prime Minister’s relentless insistence on the need for Palestinian recognition of Israel as a “Jewish state” and the stagnation of the peace talks. But others have underestimated him at their peril. An aide quipped, when life hands you an etrog, you build a sukkah.
Speaking off the record, he explained, “We first thought that admitting we are really Khazars was one way to get around Abbas’s insistence that
no Jew can remain in a Palestinian state. Maybe we were grasping at straws. But when he refused to accept that, it forced us to think about more creative solutions. The Ukrainian invitation for the Jews to return was a godsend. Relocating all the settlers within Israel in a short time would be difficult for reasons of logistics and economics. We certainly don’t want another fashlan like the expulsion of the settlers in the Gaza Hitnatkut[disengagement]...”
Is that good enough for you?