HueyLong
Banned
No African slavery means no America, or at least not the same one as we know. It was expensive to get people here and stoop labor was both much needed and in short supply. You couldn't use Indians, they either died or ran away, nor Europeans, as they died if worked hard in America.
Indentured labor was still an alternative, and often outnumbered slaves in the early years. There was a surplus population that could be moved and would be for awhile. One scholar estimates that 500,000 convicts were transported to the US in the 1710s, and that was with competition from slavery.
Europeans did not die if worked hard. The higher fatality was due to the fact that they were cheap and plentiful, and there was no profit in letting them live out their term. The big problem was their much, much easier escape. You cannot tell a MacDougall as easy as a Kunsa.
And don't forget, the NE colonies did not rely on slavery. So there is a model there for free settlement.
However, I don't think that indenture and penal settlements will last until the age of cotton, so plantation culture is mostly a footnote in the continental US.