Snopes is not always factual. There is plenty of info out there that says what you claim is not true. The enslaving of people had already existed and Columbus did not personally make this happen. The powers in Europe made that happen. I will always honor Columbus as a great adventurer and explorer.
OK...
The Carib(Cannab) Indians were slaughtering and eating the Arawak tribes across the Caribbean. It is where the word Cannibal comes from.
Columbus found some pregnant Arawak women prisoners in cages. It seems the Cannabs loved to snack on new born Arawak baby.