MarsAtlas said:
Sure it is. Its an offensive sentiment held unjustly towards a group of people. So is the sentiment that transgender women are really just men in extreme drag trying to trick straight men into having sex with them. Its perfecly analogous.
I just want to quote this to reiterate why some people are considering this offensive.
This is a sentiment you see all of the time, sometimes to the extent that people will attack and beat the person who "duped" them. Usually it's just used to ridicule them or demonize them for daring to sleep with you without telling them you were
really a man. Because god forbid a transexual individual want a sexual encounter as their preferred gender.
It's not the most offensive poem (They were classy enough for him to kill himself instead of her), but I'd say it's pretty tasteless. In a world where this belief wasn't so god damn pervasive maybe I'd assume that the joke was on the man for being intolerant and insecure, but it really comes across as "Ha! You got tricked into sleeping with a man, now isn't that embarrassing?"