A thousand years ago they were all basically walking around looking like real life Bigfoot out in caves and wilderness of Europe. Until they were civilized, admixed, and shaved down.
The Bible talks about how Esau was when he first came out the womb (red and hairy). His brother Jacob had to wear a sheepskin to imitate his appearance.
The ancient European nobility used to put on live performance and shows masquerading as these people in costumes. There are old legitimate paintings of these people battling the black nobility of europe.
I remember watching an old video where this guy (a geneticist I think) did like a TED talk type thing where he was talking about how only black people don't have the Neanderthal Gene in their DNA.
At the highest levels these cacs know who they are and where they come from. They're just at a point in history where they are in rulership (for now) so they make sure it's not spoken about or taught to the general public.