Do you know whose navy enforced Abolition from 1800ish on? Do you know which group of people developed the new idea of abolishing slavery? Do you know who resented it? Leaders of color from Africa to Arabia to Asia. Do you know how many slaves are still in Africa and other places, but not in the West? Do you know that horrific though slavery was, and wrong that 20th century racism was, it was just much the same worldwide. See Henry Louis Gates History of Africa, and this. https://www.youtube.com/watch?v=VWrfjUzYvPo&t=747s There is just no argument, historical, practical, or moral, to continue acting as if the Atlantic Slave Trade was the only event in history we should be 'sorry' for.