Pluralistic ignorance
In social psychology, pluralistic ignorance is a situation in which a majority of group members privately reject a norm, but go along with it because they incorrectly assume that most others accept it. This is also described as "no one believes, but everyone thinks that everyone believes". In short, pluralistic ignorance is a bias about a social group, held by the members of that social group.
Diana L. Eck
Eck lays out three prevalent responses to religious diversity: exclusivism, inclusivism and pluralism. An exclusivist approach takes the position that “my way is the only way”. An inclusivist might consider that there are grains of truth in other ways, but ultimately understands that “my way is the better way”. In contrast, a pluralist response seeks to find new ways of positively engaging with diversity, exploring differences whilst seeking common understanding. On the website for Harvard University’s Pluralism Project, Eck describes the four principles of pluralism: