This is false.
In the language of Kamit [Egypt], Ra (rah) is the most ancient name for the Creator of the world.
The Egyptians had about five creation stories. Ra was the creator in one of the stories. In others, Ptah is the creator god who operates very similar to the deity YHWH in the Genesis creation story. In fact Ptah, the patron god of Memphis, is for whom the country Egypt is named after. Het-Ka-Ptah or House (Embodiment) of the Ka (Soul) of Ptah.
When Ra and Rait first moved through the primordial hill, the Ka/Kait to make it vibrant, to give it life, the Ka/Kait, the raised land, became the house or place of residence for Ra and Rait. It is for this reason that Ra and Rait take on the titles Afu Ra and Afu Rait.
In the Heliopolis creation story where Ra is the creator god, the feminine aspect is not present. Ra does have a feminine aspect - Raet, but does not develop until later centuries. However, there is an aspect of Ra present at creation, he is called Atum Ra. Atum Ra is the embodiment of the newly risen or newly born sun.
This man also erroneously summarizes the creation myth. Ra does not exist before the primordial hill. He does not give it life.
There was first the watery chaos called Nun. Then from out of the watery chaos, the primordial hill, called the benben, arose. Then at the apex of the benben, a lotus flower bloomed. And from out of the lotus flower Atum Ra comes forth and then goes on to create the other gods. Additionally, Ra does not take up residence on the benben landmass. He takes up residence in Nut (the sky).
His translations are also wrong.
The Ka doesn't have a feminine aspect.
Additionally, Ka doesn't mean raised land.
It is the soul or more specifically the life force of the soul.
He then goes on to say that Ra takes on the titles "Afu" Ra but then does not define what that title means.
It's not a title. It's an aspect of Ra. Afu Ra is the aspect of the sun when it travels through the underworld after sunset. Afu Ra has no relation to what he's defining.
This is why the first landmass is called the Ka of Afu Ra, the land of the Creator and the Kait of Afu Rait, the land of the Creatress.
The Ka of Afu Ra is Afuraka. The Kait of Afu Rait is Afuraitkait. Afuraka/Afuraitkait is the Divine Land…”
Again, wrong definitions. The landmass was called the benben. Ka does not mean land. And Afu Ra was the aspect of the sun traveling through the underworld at night.
This is all afrocentric hogwash.
Additionally, the Egyptians were not concerned with the continent of Africa. Egypt was the center of their world and that's what they named. They did not have a name for the continent and additionally, I'm sure, they were not even aware of the extent of the continent. Egyptian geography extended south down to Abyssinia (Ethiopia and the geneal name of Africa in antiquity by the Mediterranean civilizations) and west to Libya. I haven't seen any records where they had contact or knowledge of lands beyond those points.