If that person expects me to call them she then yes it's a demand. If that person came into my business just as they appear in the photo what do you suppose would happen if I said "yes sir" to the person?
Ben shaprio famously had his safety threatened when he refused to use the "she" pronoun with a man so let's not pretend it's outside the real of possibility.
"IF" You are all pissed about something that has not happened, except in your own imagination.