I've got my own little theory on the abduction phenomenon.

You see, it seems to me that people are always very willing to believe in alien and/or supernatural entities - even profoundly hostile entities of that sort. But no one wants to hear that aliens, or spirits, or whatever, don't exist.

I'd say this indicates a deep, profound fear that such beings do not exist - that people are frightened of the concept that we're alone in the universe. It's just a hunch, not all that well supported, but the idea of being alone frightens me and, and at least one other poster has mentioned being frightened by that possibility... Perhaps there is something to this. Then again, it could very well be a red herring.