No, they were a North American people.
Most of the time they where bought or bartered from tribal chiefs. The traders themselves did not do the capturing very often.
who really knows what the heck they did.
Yes they did. For Greed.
No there are an estimated 2000 languages spoken on the African continent actually that's incorrect
Yes, many Africans sold other Africans to trade for rum from the Europeans; also for their own protection to keep from being enslaved, themselves, they gave up their prisoners.