The use of public funds complicates as well

Public Univ's create mandatory student fees and then allow them to be doled out to any number of official student groups who then use the money to pay for their activities. You can imagine Jewish students are none too pleased to see their monies fund SJP and WOL, whose originators have connections to Hamas and other terrorist groups.

I think universities have to maintain order and discipline in order to be effective learning environments. And part of that means students cannot directly or imply to threaten the lives of other humans in a public fashion. So you can write or say whatever, but you can't imply murder or genocide at your protests. So if the white supremacists want to write a term paper- that's fine, but we're not letting you don the white robes and march through campus. See the difference? And just because your group is kicked off campus or a student or two is booted is not the end of the world.