What you are saying then, is that Frederick Douglas was lying when he said that Blacks were taking up arms in the southern army. Is that not correct?
If that is the case in that instants then, What made him an authority on the status of any slave other than himself? Douglas spoke with the authority of one who was given authority. He was speaking with the authority of those who had a point or an agenda to press. That agenda was the emancipation of the blacks and those blacks taking up arms against the Union Army were destroying that objective. That is the authority that Douglas spoke with. He did not have to know himself personally he was simply told by his friends the abolishionist. And those who say that Douglas did not know what he was speaking of deny that there had to be good reason POLITICALLY for him, and the abolishionist, to make such statements.
Douglas was mearly a tool, a pawn, a mouthpiece of the radical abolishionist movement. A face on the issue. He was the example of the black that could be useful if properly managed. What was his authority for anything he said? It was what he was told to say. Lets remember that he himself said that he was a part of the intercircle of the John Brown Harpers Ferry Conspiracy. Why? To rally blacks to the cause of rebellion. Blacks being armed and shooting down Union soldiers as Douglas said, was not the image that the Abolishionist wanted.
So therefore the authority that Douglas' statement, in this instance, carries is the authority of truth. Because it fits the mold of the abolishionist movements goal of protraying the southern blacks as being totally under the control of the southern white to the point that they would be forced to go out and to kill or be killed in battle. When in reality, as a soldier, you do not want an uncommitted soldier in the foxhole next to you. You want a soldier that is at least dedicated to his own survival and will fight beside you and not run. Even the Northern soldier in the beginning, had a problem with believing that the black soldier would fight.
Remember the 1st, 2rd, and 3rd Louisiana Native Guard? They were first Confederate as Louisiana home guard with their own officers before Ben Butler made them Union soldier with white officers. So Douglas was not lying. The Confederate army was far more intergrated than the Union army. That is why that there are black members of the Son of Confederate Veteran today, and why they, as a heritage organization, accept black membership.