“The other problem with saying that people like that are just a product of their time is that not everyone at that time did think like that, and it kinda lets them off the hook. A lot of people thought that slavery was okay, but you know what: The slaves didn’t. And they said so, pretty loudly and often. So if other people thought that slavery was alright, it wasn’t ‘cause they didn’t know, it’s because they chose not to listen to that. They chose not to know.”