A Possible Aide to Unifying Society

Know one of the things I like about interacting via social media? I am exposed to viewpoints other than my own which make me think twice about any given subject in which I am interested. Also the exposure occurs in a nicely-controlled environment. No one is going to pull a gun and shoot me over the Internet or start stalking me at home because we happen to disagree (especially since I use a pseudonym for any posts of consequence). Supposedly, when we surround ourselves with only like-minded people, we tend to grow closed and intolerant of those outside our "club". Therefore, wide exposure to varying points of view helps contribute to a “less-fragmented and polarized society” (Cited by Kim et al, 2013 referencing Mutz, 2002; Stroud, 2010 and Sunstein, 2001). What are your thoughts?