They believe that they are the pure bloodline of the jewish people, gods chosen. They feel that they are the master race.<quoted text>
Its because Smith wanted to emulate the Bible so it would make the Book of Mormon seem more plausible. He assumed it would fool people and he was right. At least some of the people got fooled.
I think LDS exists today simply because it has become a cultural thing. There are so many of them and they encourage large families for the purpose of making more Mormons. Kinda like Fundamentalists who like to have 16 kids.
You gotta keep these cults fueled with impressionable children.
I know a couple of them and they really think that they are above every one else.(and one of them has a 14 year old daughter who is married in the eyes of their church, child rape if you ask me)