The allusion in this passage and its interpretation is "Thousands are ushered into the world"; although some slaves have white fathers, they are still lineal descendants of Ham and should remain slaves.
Explanation:
This allusion makes reference to the biblical curse over Ca'naan, where it says "And he said, Cursed be Ca'naan; a servant of servants shall he be unto his brethren." this says that generation after generation the sons are cursed to be under the demands of their "owners" due to the lack of respect of Ca'naan towards his father.
