Yeah I figured it wasn't something you were aware of, it didn't read the same way. One thing a lot of people don't understand about American Racism is just how rooted it is in justifying slavery. By the time the Civil War happened slaves were legally and socially considered to be beasts of burden, different to a cow only in that you wouldn't eat a slave.

After they lost the Civil War southerners rallied around that idea and invented even more ways to reinforce it in the Lost Cause ideology. This is why there's so much representation of black people as feral apes and it's juxtaposed to well mannered black people in traditional slave roles under white "managers".

Part of that was a myth that black people could not control their libido. They propagated the idea that black people would force themselves on anyone and any animal nearby. This is why even looking at a white woman was a lynching offense in some areas.

Edit to add - the original comment above is just a reference to the "Thanks Obama" meme.