I am not blaming the victim, just offering a solution for the victim's discomfort. It is not equivalent to the type of victim-blaming usually done against raped women--precisely because what a woman wears isn't strongly correlated with whether she is raped or not, few decisions on her part could have helped her situation before or after, so she can't reasonably be blamed for failing to e.g. never leave the home. (And discrimination triggered by a piece of clothing is recurring, meaning one's behavior can change before and after.)
I did notice my advice has similar forms, except I wouldn't generalize to middle-class or Christian. Another piece of advice I'd offer anyone in America is to learn how to speak Standard White English if you don't know already. But I'm not nearly the first to offer this:
"In class - in my English class - you will have to master and write in Standard Written English, which we might just as well call "Standard White English" because it was developed by white people and is used by white people, especially educated, powerful white people. [RESPONSES at this point vary too widely to standardize.] I'm respecting you enough here to give you what I believe is the straight truth. In this country, SWE is perceived as the dialect of education and intelligence and power and prestige, and anybody of any race, ethnicity, religion, or gender who wants to succeed in American culture has got to be able to use SWE. This is just How It Is. You can be glad about it or sad about it or deeply pissed off. You can believe it's racist and unfair and decide right here and now to spend every waking minute of your adult life arguing against it, and maybe you should, but I'll tell you something - if you ever want those arguments to get listened to and taken seriously, you're going to have to communicate them in SWE, because SWE is the dialect our nation uses to talk to itself... And [STUDENT'S NAME], you're going to learn to use it... because I am going to make you." -- David Foster Wallace, Authority and American Usage
Another piece of advice I'd offer is: grow a thicker skin. Not always a good piece of advice--I would recommend it to an atheist in the US struggling with discrimination from their family and local community, I wouldn't recommend it to an atheist in Egypt--they should get out as quick as possible.
I'll explain to you the core of where my position on this matter comes from. I'm an engineer, and if I see a problem, I look for a feasible solution. The problem expressed by the submission is "people are being discriminated against--whether they deserve it or not, whether they're even muslim or not--because of a piece of clothing that in American society gives off a bad first impression." There are three obvious solutions: stop wearing the hijab, force away the concept of first impressions (not really a good idea) from human minds, or force everyone who harbors resentment towards muslims in general to stop it and love them. Only one of these is easily accomplished. Furthermore, it opens the door for real cognitive dissonance that can actually change people's minds. "Oh, you're a muslim? But you don't wear the thing!" "Not all of us do, and those that do don't just wear it for religious reasons..." Very few people ever learn to notice themselves completing a cached pattern of thought, and even they don't always notice consistently. People typically have to face with premise-defying reality to really change their minds.