America didn't enslave you. Whites did. America just happens to be among the whites. Remember slaves were being brought here way before the Z untied states separated from the British so technically those were British citizens that were importing blacks as slaves here. It just continued when they changed flags
They did the same in the Caribbean along with the Spanish and French and Dutch and Portuguese.
Again, the entire Louisiana territory was French owned until the haitian revolution. That territory was full of slave owners and slaves too. You think they all packed up and left after the purchase? It was common for Belgian, Germans and other Europeans to live in the colonies. They were white then. They owned slaves then too.
Louisiana Purchase included the whole of today’s Arkansas, Iowa, Missouri, Kansas, Oklahoma, and Nebraska, parts of Minnesota and Louisiana west of Mississippi River, including New Orleans, big parts of North and northeastern New Mexico, South Dakota, northern Texas, some parts of Wyoming, Montana, and Colorado as well as portions of Canadian provinces Alberta and Saskatchewan.