Prostitution, perversion, and pornography are intertwined with independence and radical politics in the history of outstanding women. Radclyffe Hall, Colette, Anaïs Nin, Kate Millett, Erica Jong--all of these women used the money they made from writing about sexuality to make it possible for them to live as rebels, dykes, feminists, artists, or whatever deviant and defiant identities they assumed.
Sex discrimination and hate crimes against women don't come from the leather community or its pornography. They occur within contexts like industrial capitalism and marriage that most people take for granted as if they had always existed, like gravity or continental drift. If feminism is going to change the world, it has to focus its critical lens on what most people think is normal, not on what most people think is abnormal.