That’s always been a half-truth used as a claim to fame by race pimps in this country. There was a short defined period when the Nubians (northern Sudan) conquered and ruled Egypt and there were some black pharaohs. This does not make all Egyptians black or even all of them of black descent. Since Nubia had previously been ruled by Egypt they had by that time and afterward adopted many Egyptian customs and beliefs but they were not Egyptians as such, any more than the Ptolemaic rulers of Egypt made the Egyptians Greeks.
You’re correct on all counts.
The Ancient Egyptians showed the skin color in their reliefs correctly. There are reliefs from the Nubian era that showed black pharaohs.
Some years ago on ABC’s black hour, a black reporter went with a Jamaican Ph.D. “Egyptologist” to Luxor’s Valley of the Kings. They looked at statues and reliefs and looked at each other significantly, rubbed their own skin with their fingers and talked in black lingo with significant...mmm mmm, yeah brother yeah, meaning built by blacks or had some black significance/history of some sort.
Here is the clincher. They went to the Dare El Bahari Temple, built for Queen Hatshepsut, and stood by an imposing, bearded statue. The reporter asked the knowledgeable Ph.D. if this was Queen Hatshepsuts uncle and proceeded with the vague lingo and skin rubbing. The Ph.D. answered in the affirmative and the lingo answer.
Guess what? The statue wasn’t Queen Hatshepsut’s uncle; it was the bearded statue of Queen Hatshepsut herself! It was important at the time for the Queen Pharaoh to wear a false beard, to gain legitimacy and respect, when attending government functions or presiding over official meetings and functions.