The GLBT movement is not trying to redefine heterosexual orientation as OSA or other sex attracted.  The movement is insisting they be viewed as they understand themselves.  One of the things that personally irritates me is the fixation on the sex of gay men while completely ignoring the sexual compulsions of straight men.  It's as if in defending Church teaching on homosexuality as sinful and disordered, people are giving complete pass to the far more pervasive sins and abuses of straight men.  That is precisely why it is imperative for 'normal' culture to control the conversation around gay men.  There might come a time when people turn their judgmental holier than thou attitudes on the sexual sins of straight men and we can't be havin' that.