Employers fire employees who speak offensively even outside of work. Free speech doesn't mean speech without consequences.
The people who want to kill free speech in order to avoid some minor discomfort see these arguments as some kind of trump card. "Do you really want free speech even when it's you that someone is saying something mean to?"
Yes I do.
I'm a Jew and I support the right to hold Klan rallies and Nazi marches. I support throwing them in prison if they threaten assault or assault anybody but I support their right to say anything they want up to that point.
I support free speech. Specifically in the cases when it's someone else saying something I don't like because that is literally what free speech means.
I'd quit and find a new job.
"100%, unequivocally,y No exceptions?" You literally just cited an exception -- a threat (a type of speech). So we all draw a line somewhere, including you.
Though we all here know you're kidding yourself and if somebody you love was distraught over being verbally abused by a professor for no apparent reason you'd want the situation changed.
I wouldn't argue that free speech has no exceptions. It clearly does. I went out of my way to point out the exceptions in my own post. I'm 100% for extreme free speech except in cases of direct threats of physical violence.