Niqab at Uni

Firstly, Islam doesn't require you to wear a niqab because Islam is easy. You are only need to cloth yourself in order to cover your awrah, (for women, head to toe in clothes that do not reveal your shape so loose tops dresses and trousers are all good). That said, women can choose to wear a niqab as their interpretation of modesty may extend to their face. Institutions should accommodate but many do not. Besides, many women, like right now in secondary school, are wearing full coverage masks instead of a niqab so that works. Besides, wearing niqab has numerous medical benefits such as preventing skin degradation and skin cancer.
Secondly, can you keep your atheistic humanistic views to yourself? As you said yourself, this is not a debate forum so don't even start. Inshallah, you will fail miserably, again and again. It'll just fly back and hit you in the face and give you a black eye.