There are people committing suicide, being harassed and not being accepted as they are so using wrong gender is pretty fucked up thing to do especially because it is so easy to do right.
This may be insensitive (and I apologize if it is) but if being referenced by normal pronouns is enough to drive someone to commit suicide (or cause emotional distress), I'd argue that this person is in more need of medical treatment than having his or her quirks pandered to by others.
Using a language normally doesn't cause problems for healthy human beings.
Using the wrong gender is enough to cause someone to commit suicide? So instead of getting to the bottom of the issue as to why calling someone "him" instead of "her" is enough for them to take their own life, and then putting up the safety nets so that this does not happen (which CAN be done - type any vaguely suicidal query into Google and you can see suicide hotlines and help center phone numbers and locations at the top of the page), it is more effective to pressure others into using the "correct" pronoun?
It is hard enough to get people to talk strictly about work, at work, but somehow it's easier to convince people to change their entire thought process so that they use the terms you deemed acceptable?
Using a language normally doesn't cause problems for healthy human beings.