Not surprised at who laps up that stupidity.
Just one of the NON alien theories on how it could be done
https://www.discovery.com/exploration/how-the-pyramids-were-built
The ramp they used would have had to be insanely large, and the word large does not account for the actual size of the ramp and precision of it, along with the rebuilding of the ramp as the height of the pyramid got larger. It also doesn't account for positioning the stones on a pyramid decreasing in size as it goes up and maneuvering the stones into place. i think some of the cranes that china uses at their harbor can lift the weight of the biggest stones, but they are overhead cranes. They are the only type of current cranes that can lift that type of weight. If we built one today, the size of the crane over the pyramid and maneuverability needed would be a feat to build. I doubt that they could build the great pyramid with a ramp today, no matter the amount of people they used.
If you haven't looked into Chinas harbor cranes, it is a cool thing to watch. Not only the cranes, but the whole harbor, and the way it functions.
The only logical explanation is Giants. The great pyramid is most likely ancient, but the rest around the world can be explained by the migration of the giants out of the area as they were driven out. It was likely in the 1300 b.c.time frame. Which we have historical evidence for. You can see the similarity in pyramid structures, religious practices, building in the patterns with astrological features such as stars, etc around the world. Migration of giants