Stop the ethnic cleansing of Black Libyans

I'm a resident of Jersey City, an American citizen of African origin. I would like to know, what the U.S. government is doing about the ongoing ethnic cleansing/genocide of Black Libyans, since the fall of Muammar Gaddafi. Black Libyans and African were massacred by the so-called revolutionaries throughout the civil war, and still today black Libyans, who are natives of that land are being cleansed of their ancestral lands, or worst jailed and massacred the most gruesome manner. The Tawerghas for instance, have been collectively condemned as criminals, rapists, and murderers by the regime that Nato helped put in place. They have been expelled of their town, that is now a ghost town. African countries are too weak, to meddle into, each others internal affairs, but the U.S. under the leadership of an African American president, and a national security team that include an African American woman shouldn't ignore the plight of black elsewhere, especially when our policies are in part responsible for their situation.