The same negative effect of diversity on community discovered - and initially buried - by Robert Putnam in the United States is replicated in the United Kingdom by a study entitled Does Ethnic Diversity Have a Negative Effect on Attitudes towards the Community? A Longitudinal Analysis of the Causal Claims within the Ethnic Diversity and Social Cohesion Debate:
We observe that as a community becomes more diverse around an individual, they are likely to become less attached to their community. This is a strict test of the causal impact of diversity, minimizing unobserved heterogeneity and eliminating selection bias. Importantly, neither indicator of disadvantage is significantly associated with attachment.Like calls to like. Most people prefer to live among their own. Segregation is not only the right of free association in action, it is a community imperative. This is further evidence that the increasingly diverse United States will not survive because it cannot survive. It is not a nation.
Model 2 shows the same analysis among movers. Diversity is again significant and negative, suggesting that individuals who move from more diverse to less diverse communities are likely to become more attached (and vice versa).