One of history’s great tragedies is current Egyptians are in charge of ancient Egypt’s artifacts. Nobody there really cares at all about anything previous to Islam except for the tourist value. All of the treasures of antiquity are moldering in their cases in the Cairo Museum, literally rotting from exposure to the air and humidity.
All anybody has to see are the ridiculous and amateurish “restorations” of the Sphinx and the pyramids to see what happens when uneducated and unskilled primitives are in charge.
Bingo. That concrete they’ve been stuffing in every crack in the monuments will accelerate the disintegration from the rising ground water due to the Aswan High Dam. For a few years all the tourists (assuming they ever go back) will ooh and ahh over the apparent great state of preservation, but once it’s gone, it’s gone.