So this is the idiocy that is finally going to bring me out of lurkdom. I am an incredibly proud aunt of a transgender niece (M to F). She's an incredible young lady who is, like Jazz, trying to figure it all out, and make her way in the world.
I think Derick's tweet was definitely thought out, and intended to be specifically hurtful, for nothing more than to be hurtful. Small, petty, ugly person.
I agree that Jazz is very lucky to have the parents she has, as is my niece.