While this discussion would be a lot more interesting if it involved a public university (like Maryland - which has had its' own problems w/ what type of behavior can/cannot happen at the men's games), this specific situation is made easier to understand when you take into account that Gonzaga is a Jesuit University. They have the right to hire faculty/staff, admit students, and allow conduct that is congruent with it's mission and values as an institution of higher learning.
I'm going to assume that most religious-based educational institutions will have a difficult time allowing people to question/criticize the sexuality, religious beliefs, gender, race, etc. of an individual en masse in a public forum.
There are any number of tactics and antics that students can pull on an opponent at a Gonzaga basketball game, but this chant isn't one of them. Gonzaga Univ. certainly has the right to enact and enforce it's own policies.
The beauty of all of this, is that college is a time for people to figure out what is right and wrong; a time to think about what their impact on their community should be; and to learn by trial and error what is appropriate. By all means - question, try, do, think, act, and most important....learn.
Now can we get back to the more important questions of basketball?.....Can C reach out of his primary when there is a "must get" call.....
