I agree with MrsD820.

Try telling a muslim guy his mother or grandmother in hijab is inferior to him...

Reading this article 'In the Motions of the Winds', online at: http://inthemotions.tripod.com , I could sense the feeling that most of the criticisms against the hijab might actually stem from men (no offense guys, I'm a guy too).
The author of the article 'In the Motions of the Winds' looked at verses from the muslim Holy Book which declared both men and women to be equal creations in the sight of their Creator even with their physical differences. They both were equally 'covered' at some time (didn't know about their 'nakedness') until events affected them both exposing their nakedness. He supports the hijab because

- even without Islam, many cultures around the world tend to respect women who dress well-covered (even with the images of bare-chested African girls in people's minds, one has to think about the older respected women in such communities)

- people find hairy men okay, but hairy women are not and don't appear to share the same 'equality' with less hairy women (who determines women's equality with men - men?!)

I began to wonder, why is it when we talk about women being equal to men the image of women in trousers and so on pops into our minds as a form of women's liberation? Women RAISING themslves to the same level as men.
Do men set the standards even for clothing? Why doesn't equality involve men wearing the clothes women put on (and I'm not talking about kilts!)? Could it be that would mean LOWERING themselves to the same level as women?

I got so interested I decided to look for a scientifc explanation to why men tend to be hairier than women.
I had already read that millions of years ago women were also hairy, so what happened? Quite a difficult question to find an answer to online, here's some of what I found though:
http://evolution-101.blogspot.com/
http://www.serpentfd.org/b/darwin.html
http://www.riinsrants.info/culture/girls.htm

I remember hearing that scientists had a theory that women evolved to be less hairy than men because men found less hairy women more attractive than the hairy ones and began breeding only with the less hairy ones. So male offspring would still have the 'hairy genes' while the female ones gradually lost it.
So men bred more naked women for their own purposes? Men determine what women should look like?
Is this a man's world?

In conclusion, I say
- hey, all you muslim in hijabs, YOU'RE NOT INFERIOR TO MEN (some men are just upset that you're covered up)

- the hijab is okay

- you guys should read that article on http://inthemotions.tripod.com