They both start from a point of bias and their judgment will be so colored.
Skeptics are the mirror image of those who believe without evidence...neither approach the subject scientifically. To both, their belief is a matter of faith and/or desire...and not the product of rational thought.
Isn’t it reasonable to approach these sorts of things (UFOs, ESP, the occult, etc.) rationally and scientifically and then come to the conclusion that it’s all a bunch of nonsense?