Well, it is true that heterosexual porn is made exclusively for what’s known as the “male gaze” - that is, the male point of view. Proof of this can be seen in the way that “bisexual porn” is marketed. A MMF porn where the two males have sexual contact is marketed as “Bisexual”, whereas FFM porn, where the two females have sexual contact is marketed as standard “Straight” porn. Nevertheless, there is nothing “sex negative” about it. The porn is made for a specific viewer, and it’s all about sex, and nothing but sex. Porn doesn’t exist to be didactic; it exists for one reason only: for people, men in particular, to get off to. That’s it. Nothing more. It’s doing it’s job.