What is the ruling regarding a woman who wears the hijab under duress and wishes to remove it because she does not accept it, and does not wearing the hijab negate the validity of Islam?

Allah Almighty condemned those who dislike the rulings of religion and made that a sign of disbelief. It is incumbent upon a Muslim to submit to what Allah and His Messenger (peace be upon him) have commanded. A girl who does not wear the hijab is disobedient to Allah, but we cannot definitively state that she has left the fold of faith if her dislike for the hijab stems from a psychological reason and not from it being a command from Allah. She must repent and seek forgiveness. Indeed, not wearing the hijab is a great sin, but it does not expel its perpetrator from Islam.