A special type of society is forming in the global North, the functioning and development of which are mostly determined by large-scale immigration. The integration of such societies, which include mass and diverse cohorts with a migrant background, has become a vital task requiring new governance approaches. The potential to mitigate social differences and bring people of different origins close together lies in the integration version of mainstreaming — a strategy implying the implementation of inclusive initiatives within the common policy of host states, targeted toward all their residents, including migrants.