Sherazade's fantastic post has absolutely hit the nail on the head in my opinion.
A non-muslim will always feel uncomfortable/marginalised etc wearing a hijab or any of the other methods of covering because they would not be doing it for their faith and cultural reasons.
I find articles like the shite linked to intensely irritating because it is so utterly calculated to stir up the usual misapprehensions around the muslim faith.
Of course there are fundamentalists and of course there is no denying there is oppression in certain countries but to generalise and assume that every woman who covers up is being forced to and feels uncomfortable/clumsy/whatever is highly insulting and completely close-minded.