I'm fully aware of what humans are capable. But few races of aliens are wholly bad or wholly good. Just like humans. It's not good to have an us versus them attitude. [Things she's learned while traveling. She softens.]
But it's hard to think like that when we're from a time where we can't even see that in people of different races or religions. It's hard to believe people can treat other people the way they do. For me, it's hard to see how any living creature can treat others the way some do.