This video is total speculation. The creator will tell you that several times throughout the video. It is a long history that not many Americans are aware of and a perspective of that history that is more than just interesting. It is plausible. I strongly suggest that you use the audio only where there is no text to read. The man presenting it is simply reading it and his reading skills are terrible. He mispronounces the simplest of English words and changes the actual meaning of the quote he is reading with the mistakes he makes. But the information and the way the OP presents is excellent. https://youtu.be/4nh69vhSftk