You mean like the fact that the people who wrote and signed the Declaration of Independence kept slaves afterward? Self-Contradictions and real-world ramifications like that?
But let's take it step by step:
Did slaves have a natural right of self-determination?
Sure. They never should have been kidnapped in the first place. I will once more point out that this is the Morality of Islam, not the Morality of Christianity.
Yes, for a start.
Sure. They never should have been kidnapped in the first place. I will once more point out that this is the Morality of Islam, not the Morality of Christianity.
An irrelevant diversion. The fact that they had been enslaved--sometimes generations earlier--by Muslims doesn't mean they had less of a natural right to self-determination here among the Christians in the United States. You're simply attempting to blame shift.
So the next question is:
How should the slaves have invoked and realized this right?