Take it slow and gradually, hell, make them watch MTV for a few hours it is the same thing as animal planet and just gradually introduce them to your views.
What makes you say that about liberals?
ive got my own views on life, i want everyone to think like me.
There's nothing wrong with being a liberal, and you shouldn't compare others to animals even if they don't follow by your code of conduct. You need to realize that everyone is different and that different isn't bad, maybe then you'll be more open to other ideas.