Mari Oliver is 17 years old and is suing her school for reprimanding her when she chooses not to stand for the Pledge of Allegiance (to the USA).
It sounds like Mari Oliver is annoyed that certain human rights from the Universal Declaration of Human Rights (udhr_booklet_en_web) are being denied to African Americans in the USA:
Article 7 – All are equal before the law and are entitled without any discrimination to equal protection of the law. All are entitled to equal protection against any discrimination in violation of this Declaration and against any incitement to such discrimination.
Article 10 – Everyone is entitled in full equality to a fair and public hearing by an independent and impartial tribunal, in the determination of his rights and obligations and of any criminal charge against him.
Article 18 – Everyone has the right to freedom of thought, conscience and religion; this right includes freedom to change his religion or belief, and freedom, either alone or in community with others and in public or private, to manifest his religion or belief in teaching, practice, worship and observance
Can you think of any more human rights which are being denied?