You might think the headline says it all, but no:
Goerlitz and Erdmann acknowledged their acts, and even went so far as to post photographs and videos of themselves vandalizing the archaeological sites. However, they claimed their goal was a noble one: to prove their “alternative history” conspiracy theory that the pyramids were not built by ancient Egyptians.
The men are apparently convinced the cartouche identifying Khufu as the creator of the Great Pyramid at Giza is a fake, and they hoped to do an analysis on the pigments to prove they were not as old as the pyramids themselves. In essence, they claimed, pharaoh Khufu simply put his name on (and took credit for) pyramids that had been built thousands of years earlier by people from the legendary city of Atlantis. They accuse mainstream archaeologists of covering up or willfully ignoring evidence pointing to non-Egyptian origins of the pyramids.
You know Khufu wasn’t supposed to do that, right?