GadolHadorah, both mean and women who wear dishonorable clothing are not treating themselves with kavod. However, there’s no comparison between frumpy, ill-fitting clothes on a man and clothing that does not adhere to tzniyus standards on women. To pretend otherwise is just dishonest.
What’s happening today, especially regarding women’s dress, started as a “Naval Bir’shus Ha’Torah” approach. Yes, technically the right areas are covered, but the material and tightness are not in the spirit of the law. As my Rov said many years ago, there is less of a problem with a woman wearing loose sweatpants than a short skirt. Unfortunately, as R Ephraim Wachsman mentioned in his Erev Yom Kippur speech several years ago, the skirts have gotten shorter as well.
With regard to men, there is no consensus on what men are required to cover up. They should be dressed respectably, especially if they are a Talmid Chochom, as they represent the Torah. However, their lack of tzniyus does not have a deleterious effect on others. That’s not sexist, it’s just nature.