People are prejudiced for a variety of reasons. (None of them good ones.) They might be against someone of a different race, body size, or sexual orientation. Or they might be prejudiced against the alien race that killed their family. Okay, that might be a good reason. Or is it? In The Host, most of the humans hate Wanda for being a member of the race that has almost wiped humans from the planet. But some people are able to look past that and not blame her for the actions of her race. Us? We're honestly not sure.