The guy's entitled to his opinion about the TV show, and the employee was out of line.
Did you have a comment about this yourself, or are you just looking to start another "homosexuality is an abomination/homosexuality is all right by me" flamewar...er..debate?
FYI, Snopes has an interesting page about this one, which happens to be true:
http://www.snopes.com/inboxer/outrage/practice.htm