There was a study or some lawsuit that said the DNA results from various commercial entities like Ancestry et al are mostly fake, completely wrong, or misleading.
This guy got scammed - no doubt he had said something previously about being related to an Egyptian pharaoh and they just made his wishful thinking come true.
“Ramesses lived to be ninety-six years old, had over 200 wives and concubines, ninety-six sons and sixty daughters, most of whom he outlived.” https://www.ancient.eu/Ramesses_II/
In any case, Ramesses II was Pharaoh during the Egyptian New Kingdom. All the glory and knowledge of the Egyptian Old Kingdom had been long forgotten for a 1,000 years - in other words, they could not build the Pyramids at Giza or any of the other amazing artifacts. Mostly Ramesses when around fighting various battles with his enemies. His only noteworthy accomplishment was his long life.
Oh well....
Let the old man pretend he's a pharaoh if that's what makes him happy in life.