Should This Behavior be outlawed on campus?

If we are talking about Stare Decisis, then no.  Whether public or private this speech at Universities was meant to target a specific group and dehumanize them (as stated in the article). However looking at the decisons made by the courts in Dambrot v. Central Michigan Universtity, R.A.V. v. City of Saint Paul or UWM Post v. Board of Regents of University of Wisconsin the final courts said they could not hold that the speech was prohibited. In each case it was held that the First Ammendment superceded the power of the speech codes. All the justices on the Supreme court unanimiously. reversed the Minnesota ruling, each citing that it prohibited a viewpoint which people (as hateful as it may be) are allowed to express as they choose. What is right under the law is not always popular, but they have the right to do as they wish. Perhaps after K-12 college is the "real world" that we talk about. There may still be places where you cannot say anyting you wish but there will be a lot of people saying things that you don't agree with.