While I respect your right to your opinion, I disagree.
http://en.wikipedia.org/wiki/Cross-dressing has a lot of useful information, but I will quote key points.
"most societies have had a set of social norms, views, guidelines, or even laws defining what type of clothing is appropriate for each gender.
It does not, however, necessarily indicate transgender identity since a person who cross-dresses
does not always identify as being of a gender other than their assigned gender."
"in Western society, trousers have been adopted for wear by women, and it is not regarded as cross-dressing. In cultures where men have traditionally worn skirt-like garments such as the kilt or sarong these are not seen as female clothing, and wearing them is not seen as cross-dressing for men.
As societies are becoming more global in nature, both men and women are adopting styles of dress associated with other cultures.
It was once considered taboo in Western society for women to wear clothing traditionally associated with men, except in certain circumstances such as cases of necessity (as per St. Thomas Aquinas's guidelines in Summa Theologiae II),[7]
While this prohibition remained in force in general throughout the middle and early modern ages, this is no longer the case and Western women are often seen wearing trousers, ties, and men's hats. Nevertheless,
many cultures around the world still prohibit women from wearing trousers or other traditionally male clothing."
On a less serious note, as a woman who almost always wears pants, I intend to have 1 male cross-dressing characters. Mostly because my strange sense of humor finds it hilarious, and partly because 1 of the male faces looks like it is wearing makeup.