Alright, it's no secret that violence is practically worshiped in our culture, while anything related to sex or sexuality is shunned.
However, a thousand bucks for the person who can find a more extreme example of this, than the poster I came across today while doing research for an article an transgender serial killers:
Dr. Jekyll and Sister Hyde Poster at Wikipedia
Note how "...victim after victim dies horribly in throat cutting orgy" is an unambiguous selling point, while the idea of seeing someone transform between genders is presented as a warning label.
Actually, it is still a selling point in it's own reverse psychology sort of fashion, but I should point out that the message here still revolves around the idea that changing one's physical sex is somehow shocking and grotesque, as opposed to, I dunno, a medical procedure with no more sociological significance than having one's tonsils or wisdom teeth removed.
That is, one is supposed to find the idea of changing one's sex extremely revolting and shocking, and since that is the reason for seeing most horror films, it becomes the main selling point,
I should probably also point out that this attitude was also shown during the scenes if The Christine Jorgensen Story so was certainly not uncommon during this time, although that goes without saying.