My only point was that human being in 2021 may not capable of replicating the great pyramid of Giza.
We even don’t have technology to move some of the rocks that has been put in place thousands of years ago.
This is not even my opinion but people who build skyscrapers say they couldn’t do it. They have no idea how they did it. I believe them rather than you, sorry.
But you’re right that they were very very clever people back in the past. More clever than we are today.