It builds to honest self reflection on tribalism in a way very few articles do well. It's worth the full read. Of course, I'm not team Blue, so I might be biased. There's lots that it makes me think about regarding my own reactions to liberalism (is team Grey just doing to team Blue what they did to team Red?)...

Worth the whole read. I am inspired to write up a list of the five worst traits of my own ideological in group (which I will go with libertarians not because it's a great fit, but because it's the closest I've got), just to make myself face them honestly instead of pretending like I'm being self critical when I criticise the liberal attitudes of the community in which I live (there's not the critical mass for team Grey to really achieve that level of isolation).