How do other white people feel about the kkk?

It is scary that some people can be so ignorant and hateful. Mostly, I'm just baffled. I just can't see where they are coming from. Even if you are "raised" to be racist by your parents or immediate culture, surely at some point you grow up, have your own experiences, and start to think for yourself. I think some people involved in the whole white supremacy culture don't have anything else to feel good about in their own lives. They aren't educated, or don't have jobs that help them build positive identities. The only thing they have is the fact that they are white. The only way they can make themselves feel good is by putting others down.