"You'll never convince them.Don't even bother trying."
That's wise, because you can't convince someone who is trying to convince you.
You say that, but it is pretty scary to think about what my indoctrinated peers are going to turn out like in 15 years. The vast majority of their ears have never heard a conservative voice, and I feel that I have a societal duty to my peers to keep the professors liberalism in check.