Gosh I knew this would devolve into "women can wear pants and so why can't men wear skirts" again.
I agree with the other GGs. CDers wear women's clothes because they want to, not because there isn't variety and color available in men's clothing ... because there is.
Except that women have hips bigger than their waists, which men don't, making men's pants unsuitable for women's bodies. And if dresses for men were a part of the western clothing culture and widely available, women still couldn't wear them. There would not be enough room in the chest area, and the hip area would be way too tight. Dresses purchased in men's stores simply would not fit.
... and most CDers would still want to purchases their dresses from women's and not men's stores, even if the colors and the fabrics were the same. :D
No. It was rather like, "Screw it! (No pun intended

) I will wear clothes that DO NOT signal accessibility ... because I am independent and strong, just like you. I can vote now. I am not chattel.