... you missed the 'still around here' part of my post. 😜
Those you mentioned were great and super-ancient civilizations/cultures (love them) but have been buried by the sands of history long time ago.
Saying that an Egyptian today belongs to the same civ. of Ancient Egyptians is like saying that given that I'm Italian, I'm an heir of the Roman Empire. No way. Not even his/my genes has/have a lot of Egyptian/Roman roots.
Ancient Egypt lasted as its own distinct civ/culture until the late paleochristian era at most, but already then it was already mainly eaten by the ellenestic/roman civ. Arabs did the rest.
On the contrary there is no complete interruption in the cultural continuity of judaism until today. Love them or hate them, it's a historical fact. That said, we could dispute whether Ashkenazi Jews were Khazarians or direct descendants of the 12 tribes..😬