Not OP but.. The ptolemaic Pharaohs (Cleopatra..) and after are not related to the dynastic cultures which made the pyramids. They were greeks. Subsequent occupation by post Roman cultures including the Byzantine, and Islamic Arabic tribes, and the Ottomans, means the culture and genetics of modern Egypt have little to do with pyramids and pre-roman era mummies and culture/religion/beliefs.

Waves of occupation over 2000 years eroded any cultural link.

What I read suggests the Berbers have some historical relationship and the Bedouin less. Nasser was an arabist, as were the young egypt political movement of the 19th century.

It's like asking why modern British people aren't strongly identifying with pictish culture or beaker people.

The Egyptian archaeologists assert nationalism and cultural goals and have to deal with Islamic fundamentalists who push back on pre Islamic religious artefacts. Saudi archaeologists have similar pressures.

Thanks, you explained it better than I might have.

> What I read suggests the Berbers have some historical relationship and the Bedouin less.

I understand the Copts in Egypt also have a stronger relationship to the ancient culture than the the population as a whole.