While I do generally agree that it is better to be male passing through the security theatre there are some exceptions.

I could be wrong about this but I think males are more disgusted by same sex sexual contact than are women. Yes, this is is a generalization and not always true, but I think men are simply way more homophobic. There is a stronger stigma against same sex genital contact. I think the same sex aspect may be more traumatizing for us than for women. Hell, the TSA even seems to think women would actually prefer being touched by a same sex screener. I think the vast majority of men would prefer a woman to be handling our delicate packages.

During the sexual patdowns men's junk is more "out there" and can be played with and abused more. Women don't have to worry about having their testicles squeezed for instance. And a karate chop sliding motion to the testicles while patting down the legs hurts a lot more than a karate chop to the vulva (or even to the breasts).

Based on the limited x-ray images that have been released the images of the male seems to be more graphic, probably due to the genitals hanging out there more. In the images you can even see exactly which way it is hanging. Also men aren't used to having their dick size judged by strangers. Women are used to this with their breasts, but, unless we are wearing a speedo, we men are shielded from such judgments. With the NoS all of a sudden our equipment is out there to be judged by an expert team of panelists in the peep room. I think differences in women's labias are not quite so obvious in the images. And the differences are more subtle anyway.