All universities should have a "defense against the dark arts" class where students learn how to weigh evidence, arguments, and logic. Outside of that, I believe class should be opinionated and biased.
If that were the case, then quacks would find themselves without an audience.
I do worry that by casting quacks out of polite society, we will also cast out iconoclasts and free thinkers.
The Singularity Institute is working on it (or rather, the spinning-off Center for Applied Rationality is working on it); and indeed, we have literally been known to refer to it as "Defense Against the Dark Arts".