These people were manipulated by the same forces manipulating the world today. They were corrupted by dark spirit attachments and they had ongoing manipulation by extraterrestrial mind control working to corrupt them, to control their societies, and inculcate many self-destructive practices based on the way extraterrestrials live, at least in part, and other things that would cause long-term depletion of resources and increasing friction and failures of their societies. This is the reason why the indigenous peoples appeared to come and go and die out. It is because they become so corrupted by the interlopers they may well reach a point of extinction, and it is only through reincarnation elsewhere they regain a foothold and may restart a prior culture, to some degree, in its trappings and beliefs.
This, of course, is the consequence of the karmic legacy created by the prior civilization. The information is still within the personal akashic records of those individuals incarnating in a new setting where that culture does not exist but can be recreated. It is no different than the fact there is music present throughout history and, while it is quite varied, there are common themes, common elements, and that is because there are fundamentals that are shared by all musical people in the way they will respond to harmony and rhythm. So it is narrow thinking to attribute this strictly to Reptilian influence. They were not alone in causing corruption of these worlds. It was the entirety of the Alliance with all of their activities that darkened things and led to acts of depravity as asked about in the question.
We see this, from the divine perspective, as not so different from today’s world, at least in more recent times, when rather than human sacrifices, humans were sacrificed for the sake of social order by the execution of criminals reaching a perceived level of heinousness in their conduct and then would be hanged, beheaded, or electrocuted in quite cruel fashion to end their existence. This solves nothing and, in fact, adds new problems to the old and, in that sense, is no better than the human sacrifices conducted by these perceived primitive peoples.
Almost all humans have been heavily manipulated. There are a few tribes that have been lesser influenced by virtue of their great isolation so the Extraterrestrial Alliance has little interest in them. In a sense, it is leaving them for last, but that does not mean they are safe either. But any civilization of any size has been not only visited but commandeered and controlled heavily on the part of all its members to program them, and inculcate many beliefs about the conduct of society and how things should be organized, and they will taint everything from their spiritual beliefs to their government and their ways of policing their citizens, and from there onto education of the young, and so forth. The mythology, the shared cultural elements will increasingly be corrupted with disinformation and this is done routinely, worldwide. This is how the world’s religions have become corrupted as well. So no group of human beings is untainted. If anything, the modern citizen is more heavily corrupted and more faulty in their thinking than the so-called primitive civilizations that died out long ago.
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