US President Joe Biden Thursday signed a law making June 19 a holiday to commemorate the emancipation of Texas' last slaves in 1865, but is there selective condemnation of slavery in the North American nation?

Child slaves trafficked to cocoa plantations in Africa were told they cannot sue Nestle for 'general corporate activity' in the US, according to the US Supreme Court on the same day Biden declared the anti-slavery holiday.

Many claim the companies' facilitated child slavery.

Also Read: Biden signs law establishing federal holiday to commemorate end of slavery

Biden even stressed that the emancipation of American Black slaves "was only the beginning" of efforts to "fulfill the promise of racial equality."

He added, "We must continue to walk to fulfill this promise because we are not there yet," at a time when the Black minority (13 percent of the population) continues to suffer discrimination in various aspects of life, including employment, housing and even health.

Meanwhile, several hours prior to the announcement of this 'promising' holiday, eight justices of the US Supreme Court ruled in favor of Nestle and Cargill in a lawsuit filed by six former slaves from Mali, who were trafficked to cocoa plantations in the Ivory Coast as children.

In Ivory Coast, the six children had to work long hours with little to no pay in dire conditions.

They were given little to no food - almost starving - and were brutally beaten with whips, according to the lawsuit.

The court acknowledged that Nestle and Cargill do not own nor operate plantations in Ivory Coast but "do buy cocoa from farms located there and provide those farms with technical and financial resources."

Both Nestle and Cargill won the case because the six defendants' injuries occurred overseas and the only domestic conduct "alleged by [them] was general corporate activity."