blackshoe, on 2017-March-19, 16:24, said:
Middlebury was ugly (whatever you think of Murray, a talk by him doesn't justify personal violence), but I don't understand why you equate "Protesting an invited talk by Murray" with "not expanding your horizon". I bet most of the protesters know more about Murray's arguments than you do. If they just wanted to avoid expanding their horizon, they could have just gone to the bar instead of to the talk. Meanwhile, Murray was (from what I read) invited on the initiative of students who disagreed with them, i.e. who made a conscious choice to expand their horizon and challenge their own beliefs. Yes, a minority of students tried to prevent that, but they were a minority.
On a more general note, I find this whole "Protesting against XY's college talk is an attack on free speech"-line of argument pretty, uhm, ridiculous. Any series of college choice makes choices about which viewpoints are worth presenting - there are only so many speaking slots each term. E.g. if my University decided to spend tuition dollars (sorry, pounds) on inviting a global warming sceptic who doesn't even understand basic chemistry/physics, then I'd be quite supportive of students deciding to protest that - nothing can be learned from listening for an hour to a speaker whose basic arguments are obviously wrong for anyone who has taking an introductory physical chemistry course.
Younger generations should challenge the older generations in their ways; and if they, say, think that my generation has settled into a canon of campus speakers that really needs serious re-thinking and overrepresents unworthy viewpoints at the cost of underrepresenting worthy viewpoints, then they should make their voices heard and protest! That is what free speech is about. Saying they shouldn't just shows you are part of the cranky older generation who doesn't want their own views challenged.
Tldr; - saying "Protest against XY is an attack on free speech" is an attack against free speech.