The following Q&A is contradictory to almost every narrative the mainstream public accepts as true. Part of the reason for this is the fact that history can be elusive to commonly held beliefs as what is known often isn't much more than a few documents and artifacts. This leads to conclusions that aren't in any way validated because the means to do it isn't substantial enough to be accurate.
An analogy about interpreting history is that it's like trying to get a bull's eye in darts with the lights turned off. You may have hit the board but not the target bang-on.
I'm certainly not saying this information you read is definitive but it does paint a clear picture. I would suggest approaching it with an open mind and remembering to remain vigilant and not get sucked into a narrative that isn't aligning with your own better judgment.
"Your body is merely a machine made to express the thoughts that flow through you and nothing more. It is but an instrument for you to express your imagings just as a piano is an instrument for a musician to express his imagings. Just as the piano is not the musician, so, likewise, your body is not you." - Walter Russel