I don't care what she wears as long as she doesn't cover her face, which as a fellow human I depend on seeing for effective communication.

What I care about is what that means about her social behavior. Does that mean what it is supposed to mean, i.e. that she believes it is a woman's duty not to "tempt" men, by covering up everything but her face and hands? Does she avoid interacting with half the human race so as not to "tempt" them or herself,  not socialise outside the family, etc.? Then yes, I have a problem with that, just as I have with all other ultra-fundamentalist beliefs about women's "duties".

Is she wearing it while not actually having the beliefs that go with it? Then if she acts and talks in a a way that belies what the hijab says, I'll applaud her, while wondering why she insists on publicly presenting herself in a way that goes contrary to her beliefs and actions.