I understand that the south produced a lot of cotton and other materials from slave labor. Did that material make its way north to be used widely enough that even staunch abolitionist would find it difficult to to do with out slave labor?
Edit: spelling typo
It depends on the abolitionist. There was a "Free Produce" movement, where adherents would avoid purchasing and using slave-made goods. This movement was especially popular among Quaker abolitionists. The 18th Century abolitionist and Quaker, Benjamin Lay, is said to be the first to adhere to this cause.
However, due to the ubiquity of slave-made goods, it could be a difficult cause to follow, and while some abolitionist societies did lend support to it, many others saw it as more or less an attribute of hard-line radicals that did little to advance the cause. For instance, William Lloyd Garrison, one of the leaders of the abolitionist movement in the Antebellum period and one of the founders of the American Anti-Slavery Society, was a proponent of the movement, writing in The Liberator that, "Entire abstinence from the products of slavery is the duty of every individual." But he also wrote in the same publication that he considered the Free Produce movement "only a subordinate instrumentality" to the abolitionist cause. If abolition was achieved, it would become a moot point. Though as other authors have since pointed out, the "Free Produce" movement was instrumental in giving rise to consumer activism in the United States, leading to later boycotts that were more effective.
space labor
The intergalactic slave trade is a question better sutied for /r/Futurology ;)
SOURCES:
Faulkner, Carol. "The Root of the Evil: Free Produce and Radical Antislavery, 1820–1860." Journal of the Early Republic, vol. 27 no. 3, 2007, pp. 377-405.
Garrison, W. and Garrison, F. (1885). William Lloyd Garrison, 1805-1879: The Story of His Life Told by His Children Vol. I: 1805-1835. New York: The Century Co., pp.263-264.
Glickman, Lawrence B.""Buy for the Sake of the Slave": Abolitionism and the Origins of American Consumer Activism." American Quarterly, vol. 56 no. 4, 2004, pp. 889-912.
Holcomb, Julie L. Moral Commerce: Quakers and the Transatlantic Boycott of the Slave Labor Economy. Cornell University Press, 2016.
Moon, Sarah. "Early Origins of the Conscious Consumer? The Free Produce Movement of the 1800s." Brooklyn Fashion + Design Accelerator, 25 May 2015, bkaccelerator.com/early-origins-of-the-conscious-consumer-the-free-produce-movement-of-the-1800s/.
Nuermberger, R. (1970). The Free Produce Movement: A Quaker Protest Against Slavery. Durham, NC: Duke University Press.