^ Considering how difficult "passing" is, a run-of-the-mill pervert/rapist isn't going to be able pass -- and if there something that stands out more than a man going into a woman's restroom, it's probably a not-quite-passing woman doing it.
^ In the case of luring anyone into a van or trap someone in an alley: If the person passes, it's not going to help (and the extra equipment is probably going to get in the way), and if they don't, they will draw very unwanted attention to themselves.
^ Regarding "MtFs only" and sound bites, I'm guessing that's going to take getting information out there, but I'm guessing the problem is that MtFs provide the more sordid stories/propaganda -- it's harder to create fear or any kind of sensational story with FtMs ("pregnant fathers" aside), and simply acknowledging ISs would pretty much force the target to accept that MtFs and FtMs legitimately exist. Also, masculinity trumps femininity in our society, even on most dimensions for bio-women.
Regarding the topic, and this is something I've said before, but the Democrats are going to suffer in the elections whether or not they pass a strong ENDA. Personally, I don't see passing it making things significantly worse for the party -- I don't see this issue costing them many more votes than they would gain. And if they get this issue dealt with now, it'll be one obstacle they won't have to clear the next time they return to power.
Not to mention it looks popular. I mean, the Democrats may actually *gain* votes:
http://www.bilerico.com/2010/02/mess_yes.png