So you agree with Lee that slavery was the best thing for black people, right?
About as much as you agree with “Honest” Abe that sending thousands of people you hate into an inhospitable land, most likely to die, was a good idea. The death rate was terribly high. The living (for those that could survive) was far more miserable than any plantation.
By the way, lest you continue to make the mistake of thinking that the South was not in sympathy with “Honest” Abe;
For many years the American Colonization Society (boostered by “Honest” Abe and his hero, tried to persuade the United States Congress to appropriate funds to send colonists to Liberia. Although Henry Clay led the campaign, it failed. The society did, however, succeed in its appeals to some state legislatures. In 1850, Virginia set aside $30,000 annually for five years to aid and support emigration. In its Thirty-Fourth Annual Report, the society acclaimed the news as “a great Moral demonstration of the propriety and necessity of state action!” During the 1850s, the society also received several thousand dollars from the New Jersey, Pennsylvania, Missouri, and Maryland legislatures.
[Act by State of Virginia making appropriations for removal of free persons of color to Liberia], 1850 American Colonization Society