I would love to see a list of the kind of Unamerican speech, which can get students expelled.
This has nothing to do with being "Unamerican". Saying the n-word is American as apple pie, baseball and the 4th of July. The problem is that it's racist.
"Sign"
You know the whole "First they came..." by Martin Niemöller. He doesn't mention people he liked, that "they" came for first (in fact he was a anti-communist). In the same way here, what are the next kind of speech, people will be expelled for? What you really open for is for the universities administration to establish a official ideology, which the students have to follow or at least stay silent against if they want to go to that college.
Not allowing students to insult, bully or terrorize other students due to their skin colour doesn't seem to be an "official ideology". And, anyways, in Europe, that wouldn't be the question, the question would be "Should prosecutor file charges for heinous speech against those students?".
