If that was true, most fetishes would follow the same logic as would Rule 34. As the depths of the human psyche knows no limits, a healthy skepticism is a good thing, but one shouldn't dismiss anything as impossible.
As with most fetishes, but there is no sense in kink shaming. We're all different, so it's easier to own your weirdness rather then not. And remember, one person's phobia is another's fetish.