More on that U of Chicago letter to the students...
Things that pose a threat to "freedom of inquiry and expression" in higher education:
1. declining levels of public support for higher education.
2. the widespread belief that higher education exists primarily to train an entry-level workforce.
3. student debt
4. ongoing failures to give all students access to an equal K-12 education
5. the increasing adjunctification of higher ed
6. increasing reliance on private and corporate partners to foot the bill for public higher education
7. the proliferation of third-party vendors and educational corporations in the delivery of higher education.
Things that don't pose a threat to freedom of inquiry and expression in higher ed:
1. professors' efforts to prevent bigoted students from derailing discussion.
2. the acknowledgment that traumatized students may find some material difficult.
3. events, spaces, organizations that give students who have, as a group, been historically excluded from certain institutions the opportunity--if they want it--to have community and a sense of belonging at those institutions.
Things that don't exist*:
1. institutionally enforced expectations that faculty not talk about certain things.
2. institutionally enforced expectations that students be allowed to opt out of anything that makes them uncomfortable.
3. institutionally enforced expectations that students be protected from disturbing ideas.
4. the large-scale excision of intellectually viable yet controversial subject matter from college curricula.
*At least not in my experience of teaching at a public R1 for the past 12 years and interacting with lots of faculty at other institutions.