Yes this should under no circumstances be conflated with homosexuality or bisexuality. Hetero/homo/bi are sexual orientations. (And asexuality? I haven't thought about it much.)

AGP men already have a sexual orientation: they're heterosexual. AGP shouldn't be thought of as an additional sexual orientation, more like a sexual glitch. It'd be better classified as a mental illness.

Tbh I think it also exists without porn, though I'm still piecing together an understanding from some self- aware AGP stories, and it still doesn't mean it should be classified as a-ok any more than other harmful, distorted paraphilias. I mean I'm sure many criminals had their own variety of "innate" sexual pulls or violent pulls but an inclination or obsession toward a thing doesn't make it an acceptable, valid, healthy orientation. Some people are just fucked up. And human male sexuality especially can range into deviance, but the deviance should not be able to get a pass as harmless and elbow its way in with the healthy sexual orientations shared by the rest of humanity.

My view right now is that porn feeds a fetish that is there (like CP feeds a demand by pedos) but also creates the fetish--we know porn can alter the brain and a person's sexuality. I still believe porn is a major factor in manufacturing TiMs (and general perversion).

Edit to add: so from my patchy understanding AGP may exist on its own when males attracted to females (normal) have an erotic target glitch and fixate on themselves as women instead (pathology). And if het sexuality can be led off like this, I can see how it also can be a pathology mass produced by and reinforced by porn