So… obviously he’s not into men but this doesn’t mean that he’s not in love with a man? Your logic does not resemble our Earth logic.
Anyway, of course you don’t care what anybody says, that’s what people who want to see only what they want do to keep on deluding themselves. We’ll be here in the real world, in case you decide to join us.
I think what She/he means is that he isn’t attracted to men in general ONLY Castiel. Besides Castiel is genderless, the vessels are the one’s with genders. So If Dean loves Cas he’s not homosexual or heterosexual, he’s multidimensional-wavelength-of-celestial-intent-sexual.
Castiel has always been in a male vessel and you can bet your ass Dean considers him male, not “multidimensional-wavelength-of-celestial-intent”. And to do something with him (oh, sorry, not “him”, then let’s say IT?), you still have to do that something with the body it is in.
But you know what? This is just rhetoric actually, because I found the way this confession is written really funny. But don’t get me wrong, I’m not saying that Dean is not in love with Castiel because of its male vessel. I’m just saying that he’s not, period.
I tried to come up with a well-thought out response because you do make really valid points and have a good argument but that last sentence annoys me so much I can’t think straight. The “period” part, like you’re the expert on Dean Winchester’s love life and what you says goes, period.