Interesting conclusions while many failed...if not substantially flawed premises. Not from a lack of knowledge for you have that. It is likely from a lack of genuine context.
My point is you give power and authority where you have argued it doesn't exist...spiritually or otherwise.
"The Black Church began as a protest against social injustice of segregation in the white church" is an example. You state the white church in large part created the black church. Your inference is the black community was a counter action to a greater action and not an action on its own. Without one there would not have been the other. In other words while repeating, the blacks who were made of the same image of God didn't believe that as much as the driving force to be contrary to the white culture while ironically the same...yet, none to do with the inherent need for a God "relationship" if practically all humans no matter color of skin.
I agree that faith is a foundational truth when one steps into the arena of the beast and his neighbors. I question though the baseline belief that the revolutionaries ....Douglass, Tubman et al where driven by the need to right the spiritual evil as much as creating a improvement in daily life. Revolutions are about intentions combined with context. Something to do with survival and its byproduct more so than the cause and effect that drives your narrative.
Not being black myself or you being black but neither of us being there when history created the fist American black churches, would suggest at least one additional thought; revolutions begin in the heart not because we want to be protesters per se and neither of us has proof otherwise. Injustice is inherent in the human condition. What spirituality creates is a grandeur sense of right over wrong when the bullets begin to fly. Kneeling on a basketball court is not the case. It's easy. Its also much harder to not do than do when all others are on their knees. The kneeling today is identity poaching like all who show up late when the game is already in the books.
That day in Orlando at the Magic game [ who as a team has no more magic] Jonathan Issac was the modern day Harriet Tubman.
Eric