These two fallacies – the infallibility of one’s own group and the perfect ineptitude of the other – are beliefs which constitute two sides of the same coin, and so they tend to be held simultaneously. If the number of people who hold these beliefs becomes great enough, the result is a culture which is as incapable of acknowledging the flaws and missteps of its own tribe as it is of acknowledging the successes of its opposition. The implications of this are, among other things, a people and a government which are increasingly incapable of compromise.
A psychological explanation for the political divide and subsequent inaction on climate change. The solution? Follow the lead of successful charities, and think small.