Most contemporary societies contain multiple ethnic, religious, and cultural groups, and sociologists have identified two broadly competing models for how such a society might try to organise itself in response: assimilation, which expects minority groups to adopt the dominant culture's norms and largely blend in over time, and multiculturalism, which instead expects distinct cultural groups to maintain their identities and coexist as recognised, ongoing parts of a shared society. Neither is simply "correct" in the abstract; each rests on a different set of underlying values about what a fair, functional diverse society actually requires.
Assimilation: one shared culture that everyone eventually joins
The assimilationist model holds that social cohesion is best served by minority groups gradually adopting the language, customs, and norms of the majority culture, with distinct group identities fading in salience over successive generations, sometimes described with the metaphor of a "melting pot" in which distinct ingredients blend into a single, unified whole. Proponents of assimilation generally argue it produces stronger social trust and shared civic identity, and reduces friction from parallel, potentially competing cultural institutions and norms operating side by side. Critics counter that assimilation can function as a demand that minority groups give up meaningful aspects of their identity as the price of full social acceptance, and that the "shared culture" being assimilated into is rarely as neutral as it's presented — it's typically simply the majority group's culture, given a default status the model doesn't actually justify on its own terms.
Multiculturalism: distinct identities recognised, not dissolved
The multiculturalist model instead treats the persistence of distinct cultural identities within a shared society as legitimate and often valuable, sometimes described with the metaphor of a "mosaic" or "salad bowl" in which distinct pieces retain their identity while forming a coherent whole together. Multiculturalist policy might include public recognition and support for minority languages, religious accommodations, or funding for cultural institutions specific to particular groups. Proponents argue this respects individual and group autonomy and avoids forcing an unjustified assimilationist demand onto minority communities. Critics — including from within minority communities themselves in some cases — raise concerns about whether strong multicultural policy can, in practice, entrench group boundaries and reduce the everyday social contact between groups that builds cross-cutting trust, or whether it can conflict with individual rights when a cultural group's internal norms clash with wider legal or civic protections.
What we're still unsure about
The basic contrast between assimilationist and multiculturalist models, and the broad arguments made for and against each, are well documented across sociology and political theory. What remains genuinely unsettled is which model, or what specific blend of the two, actually produces better outcomes on the measures each side cares about — social trust, individual wellbeing, minority group flourishing, civic cohesion — since real-world national policies rarely implement either model in a pure form, and disentangling the effects of specific policies from a country's broader history and context makes clean comparative evidence difficult to establish.
This sits inside Multiculturalism & Cultural Conflict, one of seven topics in Culture, one of four domains in Sociology, one of seventeen subjects the app can quiz you on.