Tey tend to be 7 square miles surrounded by reality, living behind a gate or in the tower so long you believe self-congratulatory nonsense
 
Really these communities are white and liberal, but white first since whites are more cooperative and generous and harm-concened with the ingroup while conservatism is motivated by (justified imo) wariness of outgroups and a desire to maintain cohesion and discipline among the ingroup
 
And also wealthy types can afford these places and tend tk be divorced from reality