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.
At the end of the Ice Age, there was a melt 'overshoot', the water was higher than today and salt water extended as far inland as the Aswan High Dam location.
When the Russians were digging down to make supports for the dam, they encountered this 'silting' from that water and claimed they'ed found evidence for the 'Great Flood', not so.