Here. Of course the professor leans on the tired, old 'I was just trying to provoke' dodge. Yeah. So was Goebbels. I'm sure if someone else said that the women on the senate needed a good old raping, that the hipster professor would be all about a good laugh.
Liberalism serves the Father of Lies. As such, it cannot be defeated through mere reason and mature dialogue. It is all about tyranny, bigotry, hate and pride. These things can only be cast out through prayer and fasting.