Stupid is as stupid does. The “Western Canon” is the basis upon which a great majority of Western Art is built. Architecture, paintings, literature and film all have inherent references to the Western Canon.
Of course there are other cultures that produce and produced art, there is no reason those cannot also be taught. But if you have no understanding of the basics you won’t fully grasp anything that flows from it. Cancelling such a course is destructive, not instructive.