That really weird stuff on South Park and on some sites on the Internet about Scientology and aliens, is that really what Scientologists believe?
Some probably do. But most don't. Well, the amazing thing is that most Scientologists don't even know about that "alien stuff".
The truth is, to Scientologists, that "alien stuff" is part of the upper levels, which are confidential. Only a minority of Scientologists have reached those upper levels. The other Scientologists are not allowed to see or know about that stuff, and just about all of them comply with that rule. They are told that reading this material before one is "ready" will make you very ill or even kill you.
This means that they avoid South Park and many sites on the Internet. Also many magazines, news media and so forth. It's kind of tough trying to avoid all this stuff that's out there.
This has led to the very strange situation where more non-Scientologists have read the upper level materials than Scientologists.
If you attempt to talk to a Scientologist about this material, they will either give you a blank look, or get upset because they think you are trying to kill them. It's only amusing the first few times you try this.