Again with the arbitrary, absolutist definitions of gender (or, I suppose in nik's case, dismissing gender as irrelevant).

Furthermore, it's no less bigoted to be turned off by a transsexual than it is to be turned off by a fat person or an arrogant person.
Those examples aren't the same, as they are perceivable characteristics -- and obviously what you can see and hear plays a large part in sexual attraction. You have no way of knowing about genetics unless it's disclosed to you. It is letters on a piece of paper.

You're also missing the point. No one hear is saying that people cannot be "turned off" by the idea of a transsexual; we are criticizing the conclusions people are drawing to justify those feelings. E.g., that a trans-female is "tricking" men into unintentional gay sex, or that trans-people are gross and should advertise themselves to avoid such trickery. Feelings cannot be bigotry; acting on them can be.