What led to large numbers of people migrating from Saint-Domingue to Louisiana in 1809?

Free persons of color were attracted to the territory’s inclusive treatment of African Americans.
Planters recognized the territory’s potential as a place to expand the sugar cane industry.
People were excited the territory was now under US control and wanted to relocate.
People fled Saint-Domingue for the territory after a slave revolt brought upheaval to the island.