Via Alas, we get this defense of transgender people deceiving sexual partners about their status from "Polymorphous perversity" here and here.
What bothers me about these posts is not the legal argument, which seems to be reasonable and fairly well thought out, but the overall sense that such deception is not particularly morally wrong.
Specifically, PP says:
On the general principle that causing avoidable emotional distress to others is wrong, one could easily recognize a moral imperative to disclose some information to potential partners who might be upset by it. All the moreso in situations where the potential partner will be unwittingly involved in unethical behavior (as with a cheating spouse) or exposed to tangible risks (as with a sexually transmitted infection). While others might disagree, I am hesitant to recognize a strong imperative of this sort on the basis of membership in any socially marginalized group.
Translation: Transgendered people are victims, so that makes deceit for the purpose of eliciting sex OK.
The suggestion that transgender people who fail to disclose their gender history to sexual partners are themselves perpetrators of sexual violence owes more to horror of transgender people themselves, and of perceived "homosexual" acts, than to legal interpretation.
Translation: If you prefer sex with "cis-gendered" people (i.e. normal people, whose "gender identity" matches their physical sex) than with transgendered, or if you object to engaging in homosexual acts, you are simply a bigot and your preferences should not matter, and such deceit is okay, because it is in the service of overcoming bigotry.
Ampersand of Alas, showing his usual high level of concern about the rights of normal people, "highly recommends" this post.
Which just goes to show that the radical queer left (i.e. those who basically wish to tear down all sexual and gender norms) ultimately has little or no concern for the rights, sensibilities, and desires of anyone who is not part of their community and who does not share their views.
That is all.