I wonder how Nebraska would handle a racist football coach?

An assistant football coach at the University of Nebraska has a problem with gay people.  Which is fine, so long as he keeps it to himself.  But I'd like to know how someone can be hired, or kept on, as a teacher once a school, especially a state school spending taxpayer money, finds out that the teacher is a very public bigot.  And lest anyone raise the free speech canard, would the University of Nebraska really keep an avowed racist activist as a teacher, or a coach?  How about a Klansman or a neo-Nazi?  Funny how complicated free speech gets when you take the gay out of the equation.