Bible bashing much?

To label someone else's world view (or part of it) as "superstition" simply because it does not conform to yours is indeed something I find arrogant. It's a "I am right and you're wrong" mentality, even though neither party can produce any hard evidence for their belief. And "belief" is the key word here - your secular point-of-view is just that, a belief. You just choose to place your faith in Western science rather than divine (or whatever) forces. Branding other people's views as incorrect, old-fashioned, ridiculous or whatever isn't much better than the way the Church treated people (e.g. scientists) who did not conform to the accepted ideas back in the old days. There are many scientific theories that cannot be proven (that's why they are theories), yet curiously enough many sceptics seem to have an easier time accepting the string theory than anything related to spiritual matters.

As for evidence, how would you suggest that one would go about "proving" the existence of demons? Even if they exist and I'd end up being possessed by one, I suspect that you'd likely just dismiss it as temporary insanity or something along those lines, even if there was no medical proof to back that up. As Carl Sagan put it "The absence of evidence is not evidence of absence" - he was of course not talking about demons, but rather about the possibility of life elsewhere in the universe. At the time, many of his peers scoffed at the idea. Today, the situation is thankfully not quite the same. Whether or not we'll see a similar shift when it comes to more spiritual matters - including malevolent "spirits"/"demons" or whatever - remains to be seen, but I doubt that it would hurt anyone to try to keep an open mind instead of dismissing it all off-hand.