A movement that started with body positivity, targeted at women with low self esteem, has quickly progressed and little is left of its original motivation. Recently one branch whose roots rested in being comfortable in ones own skin has progressed far from its humble beginnings. The claim of this particular group is that school dress codes are sexist (a valid claim as the rules are not equal for both genders) and in the courageous (please note some not subtle hints of sarcasm here) battle against sexist dress codes, girls in high schools everywhere are having a heyday.
One high school team wore shirts emblazoned with the words, "I am not a distraction" to protest a "dress code that hypersexualizes women." Let me tell you, friends, this dress code is not the problem.
Dear girls on that team and everywhere, you are protesting the wrong thing. And for the wrong reasons. And making feminism and yourselves look naive while doing so.
If you are truly opposing the hypersexualization of women then you are standing up to a system that has been in place much longer than you have been alive and you're trying to put the blame on your school dress code. Even to argue that it assists in this system is a stretch as it is in place to keep you (and your peers) safe and focused.
The cause which you claim to stand against is far bigger than this dress code. If your problem was really with the hyper sexualization of women, you would start opposing the societal structures that created it. The media, ad campaigns that target insecurities that women are taught to have, or photoshopping that has led to 80% of girls AT 10 YEARS OLD to be afraid of being fat and 35-57% of adolescent girls to suffer from an eating disorder. 46% of 9-11 year old girls already diet. Those are 4th and 5th graders.
If your problem was really with the way women are viewed and treated in the U.S., you'd find something more productive to do than protest your school for making you wear appropriate clothing. You would turn attention away from yourself to much bigger problems girls and women face.
There are real issues with the way women are viewed by the media and society, but the fact that you have to wear a bra to school isn't one of them.