How do Egyptians in Egypt feel about black people in America who say they stole their land and history?

They're stupid and ignorant and racist and thieves.

I  personally despise them  for  insulting my ancestors and myself  and lying to the back of their teeth

I never heard any American claims that .

I have never heard an American black claim that Egyptians stole their land and history

The Egyptians are saying, "Look at those fools with their pants around their butt, holding on to their crotch to keep them from falling down."

That is mostly a Black activist position pushed in the USA. It is done to manufacture a "grand history" for the ancestors of the people who were sold as slaves and transported to the Americas.  It is total fantasy because the peoples in question were non-technological, non-literate nomads or semi-nomads who did not originate in northeastern Africa.  The Black people in the area of ancient Egypt were the Nubians. They inhabited what is today southern Egypt and northern Sudan. 

I doubt most modern Egyptians even know folks who are descendants of the Bantu peoples of West Africa are trying to take credit for building the pyramids. If they do know it then all they have to do is point to the many, many images from the time which show the ancient Egyptians were a Mediterranean people, and which show Blacks as not being the same.  

https://en.wikipedia.org/wiki/Mediterranean_race

https://en.wikipedia.org/wiki/Nubians

https://en.wikipedia.org/wiki/Bantu_peoples