Did you read the linked article by parent poster? There could be maybe made an argument that Copts are the descendants of ancient Egyptians:
https://mobile.twitter.com/bewilderedcopt/status/10817763566...
https://mobile.twitter.com/bewilderedcopt/status/10817763566...
Looking further up that thread, someone else said:
>And BTW the Coptic Christians in Egypt are the REAL Egyptians not Arab invaders.
>Copts share the same main ancestral component than North African and Middle East populations (dark blue), supporting a common origin with Egypt (or other North African/Middle Eastern populations). They are known to be the most ancient population of Egypt and at k = 4 (Fig.3), they show their own component (dark green) different from the current Egyptian population which is closer to the Arabic population of Qatar.