...that's not really a gotcha, mate. Transgender people are not a hive mind and one transgender person does not represent all of transgenderdom. I know you struggle with the concept of not treating people who aren't you as this mysterious unfathomable Other, but come on, son.
And this is where I go back to ignoring UP again, because cleaning my penis with lemon juice is preferable to talking to him over an extended period of time.