Why do people see a similarity between Jesus and Anakin?

Why do people see a similarity between Jesus and Anakin? I have noticed people saying they are similar and it just doesn't make sense to me. Usually the quote from the end of the ep. 3 where Anakin says "you are either with me or against me," is used. Likewise, Jesus said "You are either for me or against me" (Matthew 12:30) which has the same meaning if you understand the english language. For some reason such absolute thinking seems evil because a sith lord says it. Are you for good? If so then you are not for evil. We see that some people are against Jesus or with him. A major theme in the bible is that most people have no understanding of good and evil. I think the way star wars was written is a good example.,,at least the prequel trilogy. It seemed to me that George Lucas was trying to show fear and desire as a persons ultimate downfall but it came across so...it was just not well done. Anakin was just not a rational person at all. If he loved Daphne he could have done so if he really loved her. I'm using love as a verb, not an idea. Your thoughts?