Northwestern is a private university. However, you are wasting your breath. He does not condone the actions of this scum bag perverted professor. You know what they say about birds of a feather. The President of the University is highly critical of his actions but not Poli Poop.
I don't think you said what you think you said. But you are right - I do not condone - neither do I condemn. If it were done in public - however - that would be a different story.
Stand up for what is right, even if you have to stand alone.