Christopher Columbus
Since the late 20th century, historians have criticized Columbus for initiating colonization and for abuse of natives. Among reasons for this criticism is the poor treatment of the native Taíno people of Hispaniola, whose population declined rapidly after contact with the Spanish. Columbus required the natives to pay tribute in gold and cotton. Modern estimates for the pre-Columbian population of Hispaniola are around 250,000–300,000. According to the historian Gonzalo Fernandez de Oviedo y Valdes, by 1548, 56 years after Columbus landed, and 42 years after he died, fewer than 500 Taíno were living on the island. The indigenous population declined rapidly, due primarily to the first pandemic of European endemic diseases, which struck Hispaniola after 1519. The natives had no acquired immunity to these new diseases and suffered high fatalities. There is also documentation that they were overworked.
White Haitians
In 1595, the Spanish, frustrated by the twenty-year rebellion of their Dutch subjects, closed their home ports to rebel shipping from the Netherlands, cutting them off from the critical salt supplies necessary for their herring industry. The Dutch responded by sourcing new salt supplies from Spanish America where colonists were more than happy to trade. So large numbers of Dutch traders/pirates joined their English and French brethren trading on the remote coasts of Hispaniola. In 1605, Spain was infuriated that Spanish settlements on the northern and western coasts of the island persisted in carrying out large scale and illegal trade with the Dutch, who were at that time fighting a war of independence against Spain in Europe and the English, a very recent enemy state, and so decided to forcibly resettle their inhabitants closer to the city of Santo Domingo. This action, known as the "Devastaciones de Osorio", proved disastrous; more than half of the resettled colonists died of starvation or disease, over 100,000 cattle were abandoned, and many slaves escaped. Five of the existing thirteen settlements on the island were brutally razed by Spanish troops including the two settlements on the territory of present-day Haiti, La Yaguana, and Bayaja. Many of the inhabitants fought, escaped to the jungle, or fled to the safety of passing Dutch ships This Spanish action was counterproductive as English, Dutch, and French pirates were now free to establish bases on the island's abandoned northern and western coasts, where wild cattle were now plentiful and free.