Literally their only argument is that Egypt is in AFRICA, which means nothing. India and China border each other and are both in Asia, yet their people look nothing alike.
The next excuse is that Arabs/white people broke the nose off the sphinx and all the statues because they had black people noses. That's highly unlikely. It's much more likely the noses fell off because they were Caucasian noses and stand out much more than black people's noses, which are much closer to the face and are less impacted by gravity. Also taking a look at Greek and Roman statues, etc. you can see their noses fall off as well.
Ancient Egyptians were typical Caucasian North Africans, with white and black minorities living in Egypt as well. More black people to the south, bordering Nubia, and more whites to the north. Nevertheless, Egyptians are and were not majority black nor white.
Below is Caesarion (son of Cleopatra and Julius Caesar) and Cleopatra VII, both of whom we know were white. Cleopatra was a Greek, and Julius Caesar was Italian, therefore her son was also white. And look at their statues. Noses are also off, and they look like the sphinx. Ancient Egyptians were Caucasian. They weren't white, but they were Caucasian, with white and black minorities.