The question why is “lesbian” porn, in the “straight” section?
That’s just a matter of catering to your audience. Some 80% of porn is consumed by men. https://www.sciencedirect.com/science/article/pii/S0747563225001785 (section 3.2). Any store will display the right-handed scissors more prominently than the left-handed scissors, just because they’re more likely to be looked for.