Because, they are really wound way to tight.
Case in point, their collective sh%$ fit over the appointment of Amanda Simpson as a senior technical advisor to the Commerce Department, where her portfolio will include the export of dual use technologies, because she is transgendered.
You can see excerpts of the freakout by focus on the family about this at the link, and my conclusion is that they are freaking, because no one there has gotten their porcupine properly whacked in a very long time.
As to her qualifications:
Simpson is highly qualified for the position. She has worked in the aerospace and defense industry for 30 years, most recently serving as Deputy Director in Advanced Technology Development at Raytheon Missile Systems. She holds degrees in physics, engineering and business administration, and is a certified flight instructor and test pilot with 20 years of experience.
So she’s a test pilot and a f%$#ing rocket scientist, but all that the religious right can think about is that her plumbing has been altered.