Fairy Tales are actually evil?!

I was watching a TV show during break and I press channels randomly. However, I saw a show call Truth about Fairy Tales. I wondered what is it about so I keep watching it. It talks about the benefits of fairy tales such as don't be antagonizes in real life and soties bring happiness to kids who are ver young. After they talk about the benefits, they ask mental experts some questions. These questions are about the feelings of kids think. For example, will kids be furious and annoy if parents do not give them toys. I was going to watch news because it does not attrack me that much. But suddenly the shows talks about the negatives of fairy tale. For instance, the giant in Jack and the Beanstalk was chasing Jack . The giant got hit so he gave up. But Jack stole the giant's things such as gold. Isn't Jack evil and immoral? But this story seems like Jack is the good person in the story. Even though both of them are not innocent people but they had did wrong some how.