You know, ain't it just weird that genetically homogeneous groups of animals tend to survive so well despite a lack diverse perspectives and members?
In human society, ethnic diversity in a community is negatively correlated with social trust. That finding runs counter to the popular opinion suggesting that diversity is inherently valuable.
Perhaps it is not an accident that locations of homogenized and isolated cultures are popular destinations of tourists. Whether it's visiting the site of the once proud civilizations of Egypt and Greece, or taking in the peculiarities of Japan they are valuable because they did not seek to be like everyone else.