LOL - Toombs was against the plan for all-black regiments, so what. The Confederate units used blacks intermingled with their white troops throughout the war. That is what Frederick Douglass is pointing out in the quote you had no real answer to. I'm sorry you think Frederick Douglass was a liar, but I don't. Study history, not "historians".
And what are you doing when you post a quote from Frederick Douglass and present it as proof of the widespread use of black combat troops within southern ranks? Surely you, a student of history, have some quotes from some of the confederate generals of the time that testify to the steadiness of their black combat soldiers?