Not just talking at each other, but more of such talk is hating, insulting, bullying, inciting, and baiting, rather than any sort of reasoned discussion to try to convince people of any ideas. For any sort of sensible political environment, freedom of speech is necessary, but not sufficient. But now people just want to pick fights.
The real crisis (not just at colleges) is that people are not using freedom of speech in a way that promotes reasoned discourse on policy, so American politics is descending into the kind of “we versus they” hate politics that leads to ruin in so many examples because people and politicians are so busy hating the other side that coming up with workable policy is no longer the priority.