Yankees ran the trans-Atlantic slave trade after the 1830’s. The Republican party, which dominated American politics for decades after the war tolerated and sheltered it. Do you think those northern banks, insurance companies, and shippers were run by Democrats in the 1870’s and 1880’s?
I think you are spinning out of control, the Republican Party did not “” they continued funding, insuring, equipping, and running the trans-Atlantic slave trade until 1884.””.
On 22 February 1807, twenty years after he first began his crusade, and in the middle of Britain’s war with France, Wilberforce and his team’s labors were rewarded with victory. By an overwhelming 283 votes for to 16 against, the motion to abolish the Atlantic slave trade was carried in the House of Commons. The United States acted to abolish the slave trade the same year.
The last country to ban the Atlantic slave trade was Brazil in 1831. However, a vibrant illegal trade continued to ship large numbers of enslaved people to Brazil and also to Cuba until the 1860s, when British enforcement and further diplomacy finally ended the Atlantic trade.
So according to you, the Yankees ran the slave trade after 1860, but the slave trade didn’t exist after 1860.
Near Angola on 3 November, in what would be her last capture, Constitution took as a prize the American ship H. N. Gambrill, which had been determined to be involved in the slave trade.