This is not beliefs, but about actions, and no one has questioned her right to free speech, not even her teacher, but now that she has made such a point of sharing her dislike for America and her disrespect for the beliefs of other students, she will be judged on that dislike for America and her disrespect for the other students in the class, who also have the right to express their opinions.
Moreover, when a 14 year old makes such a spectacle of herself, one must wonder if she comes from a family that shares her dislike of America and the fact that Arab American organizations support this dislike of America is certainly grounds for examining whether these people who dislike America so much are a security risk.