Technically, Free Soilers like Samuel Portland Chase and abolitionists like John Brown, thief and kidnaper of Lewis Washington & his personal property belongings, at Harpers Ferry, VA thought BLM enough to devote their lives to it, and both had great influence on Lincoln becoming the Great Emancipator with a pen.
It begs the question for consideration what Reuters might suggest:
If Obama is the descendent of Slave Owners on his mothers side,
and on his fathers side, his father moved back to his own country of birth, the country of Kenya, on the continent of Africa, so that although Barack is an African American, he is the first in his family, and does not descend from Slaves...
Otherwise, will Reuters suggest that Obama write himself a Reparations Check?
https://www.reuters.com/investigates/special-report/usa-slavery-lawmakers/