Keep doing what you do. No, we should not just be exposed to information we agree with. How the hell are we supposed to learn and grow as people and as a soceity. If over the course of history, humanity was exposed only to the information that was "agreed upon," I'd be in a kitchen somewhere without the right to vote and given my racial make-up, a slave. So yeah, dissenting views are critically important. Intelligent and respectful discourse is important.