Definitely not. Those guys are Calvinists that try to make money by provoking people to damage their cars and etc. They are not true Christians. Sadly, they came to my town and protested my friends funeral :/ she was a high school girl at the time.
The Church of Scientology teaches that a human is an immortal, extraterrestrial, spiritual being, termed a thetan, that is trapped on Earth in a physical body. The thetan has had innumerable past lives and it is accepted in Scientology that lives preceding the thetan's arrival on Earth lived in extraterrestrial cultures.