In Charleston, the wealthy protested tea taxes by holding unopened boxes of year for 3 years. At the same time, they bought and sold slaves from the same building. How did they argue against taxation without representation at the same time as owning other humans?

by alltime_pf_guru
Georgy_K_Zhukov

You might find this older answer to be of interest as it focuses on the rhetorical use of "slavery" in late 18th century American discourse.