And there are those who would argue that all porn shows women in a submissive role, since it is designed first and foremost for the titillation of male sexual fantasies, even if the woman is in the role of a dominatrix.
I disagree - otherwise gay porn would be seen as being degrading to men.
So what's the point in setting up such a standard if it is to be left in the eye of the beholder?
It's like saying it's wrong to drive drunk even though different people might draw the line different places for how high one's blood alcohol level has to be for one to be drunk.