Dear [insert form of address],
It has come to my attention that, when discussing a certain conservative pundit, you think it is a valid criticism, or funny, or in any way appropriate, to make "jokes" to the effect of "she has an Adam's apple" or "she's a man" or the like. I would like to disabuse you of this notion.
To begin, I believe you identify as liberal, correct? You believe in equality, and standing with he oppressed against their oppressors, and the rights of the downtrodden, correct? You believe that membership in a class, even or especially an unprivileged class, is not cause for shame?
Furthermore, you believe, as I do, that Ms. Coulter is a throughly vile human being, correct? You agree that she is a hateful, racist, sexist, homophobic, transphobic, poverty-bashing, genocide-advocating, torture-apologist, victim-blaming, idiotic, willfully ignorant, talentless, unfunny, Christian-supremacist, jingoistic, warmongering, self-loathing, self-absorbed, arrogant, narrow-minded, dichotomously thinking, hypocritical, violent mouthpiece for some of the most disgusting ideologies in mainstream political discourse?
Why then is it, that the best insult for her you can manage amounts to "ha ha ugly t****y"? There is much to criticize: her idea that Christianity should be brought to the Middle East with a sword, her defenses of people who are actively trying to bring about the End of Days, her inability to distinguish between nuance and treason, and all of the things listed in the previous paragraph; so why are you going with something fundamentally irrelevant to her opinions?
For that matter, why are you using "ha ha ugly t****y" as an insult? Why are you choosing to criticize a woman pundit with "ugly", implying that her looks are at all relevant to the validity of her opinions? Why are you criticizing anyone with "t****y", implying that being trans* is fundamentally a bad thing; much less criticizing a pundit with it, and implying that trans* people's opinions are fundamentally invalid?
In conclusion, you should engage with ideas you don't like, instead of dismissing them by claiming that the person who has them is a member of an unprivileged class.
A Liberal Who's Tired Of You Undermining The Cause
(Note: This letter is also addressed to people who think "I wouldn't sleep with [name]" is a valid criticism of a conservative politician.)