I find it hard to believe that anyone accepts anything
on assumption ... but they do.
The issue of the dangers of blind belief are vast.
The issue here was rejecting something without evidence
against it.
I agree that acts carried out under the assumption of demonic
possesion are often heinous -- I don't think anyone here would
dispute that.
I have to disagree that we have any direct evidence against
(or for) the existence of demons.
Absence of evidence NEVER builds sufficeintly to be evidence
of absence.