There was huge fears during the Haitian Revolution by American slave owners that the revolt in Haiti would cause the same thing to happen in the US. What if this is actually happened and could it succeed?
1. Lack Guns
2. Are outnumbered rather than massively outnumbering their enemies
3. Far larger geographic area over which to try to organize
4. Huge swaths of safe territory in which Whites can organize and project power from to counter your advances and supply themselves
5. Non-Slave class is not already at each other's throats.
6. Ruling Government not a series of revolving door revolutionary regeimes fighting large neighbors half the time on the opposite side of the world.
Conclusion: Lots of dead blacks.