Huh, I honestly thought you were a bot, considering your reply was the exact same as the reply from before.
That said, no, I don't think so. They may believe themselves to be, and identify as such (which, if they're adults who know what they're talking about, I respect enough to refer to them by the pronouns they choose). But from a purely scientific perspective, they're either men that have been surgically altered to just look like women (or the other way around), or a genetic abnormality.