I don’t think the slavery in Africa today is like the slavery in US history; I believe many of the “enslaved” have just attached themselves to someone who feeds and houses them in exchange for work (they are that desperate, and that primitive). The article above refers to “debt bondage” and “ritual servitude” as well as actual “slavery”, and describes someone buying and freeing two slaves. Years ago it was brought to light that some Arabs were capturing slaves just to sell them to Western aid groups (who would free them).
It’s not easy to care the right way in this sad world because we don’t understand God very well, if at all, as a personal presence. In part it will be because this God will urge us to pray, if not also attempt to think or move, towards the freeing of people in seemingly hopeless situations.
And Islam is one of the most mission resistant situations known to Christendom. Christianity has to be literally smuggled in at great cost and risk. I know evangelicals do, and it’s very much on the QT and stories of great miracles abound.
Had I the wealth and my druthers I might put up another gospel shortwave station in their local language beamed at such areas, run from a well guarded site on the high seas. Then if necessary smuggle in the radios. Modern technology makes it far easier and a place like South Korea could crank them out.
Just as an example — the old fashioned way may still be best, but God can bless new ways too. An escape from a fatalistic life.