“They acknowledged students’ right to freedom of speech, but said that right carries responsibility.”
Hmm…
Congress shall make no law respecting an establishment of religion, or
prohibiting the free exercise thereof;nor abridging the freedom of
speech, or of the press; or the right of the people peaceably to
assemble, and to petition the Government for a redress of grievances.
I don’t see any mention of taking care not to offend anyone. That’s an issue of civility wholly untied to the freedom of speech - the difference between oughts and rights. Anyone talking about the “responsibilities of freedom of speech” is merely trying to colorfully veil his objection to someone else’s freedom of speech.