Yes, and immediately expel any student that displays racist behavior

A person immediately expelled is a person martyred. Real discrimination is combatted through exposure to different ways of life; not by isolating and ostracising people who dont know well enough from not having seen the better parts of other cultures.

It is also the right of all men and women to choose who they associate with; and on what grounds and how they go about it. There is nothing wrong with people learning that through socialisation, natural exposure to different cultures and being able to comfortably exercise their own freedoms as with all of this in place; most people will soon learn if interested enough. If not, it's their right to be ignorant; so long as they are not violent.