Libya has had a slave trade for years, it just got worse after 2011. The reason the media is highlighting it now (using old photos/footage), was for French President Macron to announce a new military action in Libya, which he just did. Seems the Nato/Israeli/Saudi alliance is looking for a new war now that their regime change operation in Syria has failed.
Gaddafi, like Assad and Saddam before him, had announced they would NOT be using the USD as a foreign currency/trading. Regime change ops always follow this.
Yes NATO was ordered by Obama in 2011 to commence bombing Libya, Libya went from the highest standard of living in Africa to a failed state full of Saudi jihadi proxies but at the end of the day these are individuals enslaving people. Slave markets didn't pop up in eastern Ukraine did they? The people enslaved aren't even Libyans but Sub saha Africans travelling from peaceful countries into a warzone so they can claim refugee status when they illegally migrate to Europe...
Some personal accountability for Libyans & Africans themselves please, not every day blame Western Politicians/Europeans/Arabs.