“Incan” megaliths older than we’re told

Many unconventional archaeologists have observed the structures of the Incas. And can see that there were two distinct styles with the first one being large rocks placed perfectly to align. And the second one being smaller bricks laid on top. We are told that all of this was by the Incas. But what do we do when we find something ancient and in disrepair. We restore it of course. This is common sense that does not reside in the mainstream archaeological community. As Graham Hancock says we are a species with amnesia.