Absolutely. I'm not looking for an argument. I'm just giving you my point of view that I do not need to believe in demons to know that evil exists. And that just because a word like incubus exists does not mean the actual creature does. My faith in Christ tells me there is enough problems in the world without making up more.
Just read M. Scott Peck's new book. You both might find it interesting. We know there are demons because Jesus cast them out. In these pagan cultures, I imagine these things are more rampant than in our culture. I imagine there are also fake and hysterical copies of this stuff too but still think this one rings true.