I agree with you DD. But I think a point to consider is that no matter what is considered masculine vs. feminine clothing, whether it is now, at the turn of the last century, or 18th century France, no matter how feminine looking (by our current standards) men dressed then, if you were a CDer you would not have wanted to wear the things that Louis XVI wore, even with all the lace, tights, and frou-frouness. You would have wanted to dress like Marie Antoinette. It's relative to the fashion of the times.
A point I made earlier is that even if man skirts do make it into the mainstream, there will still be a difference between man and girl skirts and the CDers will continue to prefer wearing the girl skirts and perhaps think it is unfair that others will discriminate against them because they are not instead wearing the man skirts.
The issue is not about what people wear, really. It is getting society to accept there are men and women who wish to cross the gender lines.