As Richard Dawkins recently clarified, "As a biologist, there are 2 sexes. And that's all there is to it." It's binary and there is no exception. People that claim otherwise are confused.
A censor convinced you that you were wrong. You weren't necessarily wrong at all. You may have been correct the first time. And what is correct when it comes to art? Who is this person to tell you, the artist, that your art is wrong?
Buck Angel and other trans people often disagree completely with the conclusions of these censors, who motivated by exerting power over others. Why listen to them over other trans people? Don't give censors that power over you and your work. You're the artist. Don't let others tell you your art is "wrong". It's not. Stand up for yourself and your art.