TRIBALISM

Tribalism seems to be a lot in the public awareness.  We read about tribal conflicts in both the Middle East and also in Africa.  We pride ourselves in being beyond that.  We are, for the most part, a culture following the "rule of law" rather than pursuing revenge to save the honor of our group.  However, with the ability to get news from a news organization I agree with, I am purposefully limiting my exposure to a specific viewpoint.  In addition, my twitter account tends to follow those I agree with.  I send my kids to a school that teaches what I believe, and attend a church whose doctrine I find least offensive.  There's nothing wrong with any of that, but how do I expose myself to ideas that I might not agree with?  Aren't we increasingly becoming more diverse as a culture rather than more homogenized?  Originally, it took about one generation for assimilation.  It was common for parents to forbid their children to speak the language of their country.  Now, we encourage diversity and polarization.  We see it happening in politics, religion, and languages.  Won't we eventually fall apart as a culture?  In the meantime, if your views are different than mine, I probably won't even know it.