Schneider examined kinship as a cultural system that is based in shared symbols and meanings. This form of analysis became known as the culturalist approach.
Schneider suggested that blood was the core symbol of kinship in the United States. He characterized kin ties as bonds of “diffuse, enduring solidarity”. Kin solidarity was derived from a combination of two sources: relationship as “natural substance” and relationship as “code for conduct.” These in turn arose from two opposed orders in American culture—the order of nature and the order of law. Here Schneider was making an opposition between American cultural perceptions of the “natural” basis of kinship, which he posited lay in blood (genetic) ties, and of the legally enshrined code for conduct that regulated marital ties. Some relations, such as that between husband and wife, existed only in law, while others, such as that between an unacknowledged illegitimate child and its father, existed only by virtue of nature. Relations between “blood kin” derived from a combination of both.
Schneider’s rendering of the cultural meaning of American kinship was immensely powerful, but it was also somewhat simplistic. Although his fieldwork had been carried out amid the ethnic and social diversity of urban Chicago, the vision of kinship that emerged was quite homogenized. Schneider wrote of how “Americans” understood kinship—without differentiating for class, gender, age, or ethnicity. Critics (including Schneider himself in later years) emphasized that, in contrast to this monolithic characterization of American culture, individual participants would in fact have articulated different versions of kinship and its meanings depending on their particular position in American society as well as their own life histories.
By dismissing this degree of cultural normativity as implausible in advanced capitalist societies, critics of American Kinship spurred a realization among anthropologists that their analyses of non-Western peoples had assumed similarly unrealistic degrees of cultural homogeneity. Such assumptions became increasingly untenable and more or less politically suspect among anthropologists, whether they worked in postcolonial or Western contexts.
Despite these initial problems, the endeavour to explicate kinship as a symbolic system of meanings that carries over into other ideological spheres (such as religion) had a strong influence on subsequent studies. Many later accounts of kinship, both in Western and in non-Western societies, have retained the core of the culturalist approach while also paying close attention to local experiences and understandings of kinship and providing nuanced depictions of how people in a given culture might have divergent understandings of kinship depending on their age, sex, ethnicity, personal experiences, or other attributes. Many culturalist studies have tried to show how these qualities and the perspectives they may engender articulate with each other—that is, to explain how and why particular combinations of these attributes (e.g., middle-aged, middle-class, black father or elderly, working-class, white mother) create particular or characteristic points of view. In the early 21st century, culturalist research also included the examination of the relationship between kinship and nationalism and the ways in which the ideologies of kinship can be co-opted for political purposes.