Being gay can't be considered a sin, simply because it's not even clear what "being gay" means in the first place. Does it refer to a specific biological inclination? Does it mean a particular psychological experience? Is it meant to signify a concrete sociological action? All of the above? Nothing of the above, but something else? Unless this isn't clarified, saying that "being gay is a sin" is nothing but a rallying cry appealing to identity politcs. It's that simple.
