Alcuin
Banned
Those are all part of the reason but the other is the appalling state into which the Haitian environment had sunk in TTL. In OTL, Haiti is suffering from deforestation and soil erosion but in TTL, that is made even worse by the fact of having had to fight a war with the Dominican Republic. Although Balaguer as Guevara's deputy and later successor has managed to reverse some of the ecological damage in the Dominican Republic (as he did in OTL) Haiti needs decades of TLC, which is why it makes more sense to join the West Indian Federation that (thanks to the likes of Sangster, Manley and Parris) has experience of helping members recover from ecological disaster.