I have the same issue. People place so much trust in their preferred sources of information and don't question anything they read. Because of this I have a hard time discussing anything beyond the most basic things with many friends, since they just repeat talking points and opinions of others.
It's so enlightening when I do find someone who's well read on a subject and can have an actual conversation about it. Even better if they have a different opinion and give you some new bit of information that makes you think about your opinions or perception of knowledge. Or, when you can agree to disagree because you have the similar understanding of a subject, but have different values or preferences. Moments like that can make me really happy sometimes.