She is nuts. When I was growing up, my biggest goal in life was to go to Disneyland and the same year my mom (finally) got baptised is the year that we went to Disneyland. I LOVED fairy tales--fairy godmothers, peter pan, wendy, tinkerbell. . . (but hey, I'm now an apostate-so I guess not a good example.)
If you have in laws in the religion who took her(wife) to disney, ask them if they think that she was adversely affected or has since shown any signs of demon possession. Seriously! You need to discuss this in a rational way with people who PERHAPS have a memory of some aspect of the borg that wasn't always so insane. If she thinks Disney is ok, you need to plan a trip soon and give her a REALITY check. Or have her ask the elders if taking the kids to disneyland is ok(might want to ask a likely candidate for her question first yourself in case they have lost all their marbles, too).
Keep track of all the bits of insanity that she shows in a notebook. Just in case you come up with the situation of Katewild whose husband is denying HER her child for doing normal things with him. You want custody if it all goes to crap. Not to be negative, but you are not in a normal situation and its not likely to improve soon by the sound of it.