Boy did this thread take a turn or what???
IMHO, I would have kept quiet about the gender switch, if you wanted the job that badly then it wasnt prudent to say it unless you were legally obliged to. Ops rooms are not known for their etiquette and mild banter. The piss-takes are full on and your life choice might not sit very well with alot of the folks you would potentially work with, sad but true.
Maybe reapply somewhere else, do a blinder of an interview and keep mum about the personal stuff.
Just my 2c worth.
D.O.G