Straight men are considered the most attractive and worthwhile commodity in the sexual market. Certain gay porn stars are marketed as actually straight. Men of color, seen through the racist eye as hyper-sexualized and machismo, are the subject of videos which play out the white supremacist fantasies of the exotic, sexually uncontrollable, and insatiable straight man. This fascination and obsession with straightness is rooted in the hierarchy of masculinity which exists within the class of men. White straight men are at the top, with straight men of color and all gay men at the bottom.
Masculinity is the antithesis of femininity.
By eroticizing masculinity, which necessarily means eroticizing straightness, gay men are making the subordination of women sexy. This focus on femininity is used as a way to make its opposite, masculinity, intelligible. To be sure, lesbians march as well. The mainstream Lesbian and Gay movement is very good at tokenism. Many lesbians actively support gay male sexual politics.