“…And regarding ‘integration’, we understand this to mean individual and groups of newcomers or minority groups becoming full and equal members of the society in which they live, a process that encompasses legal–political, socio-economic, and cultural dimensions (Penninx and Garcés-Mascareñas, 2015). In previous publications, we have contested the direct relationship between intermarriage and other aspects of sociocultural integration, such as social embeddedness, identification with the society of destination, or second language acquisition (Miguel-Luken et al., 2015; Rodríguez-García, 2015; Rodríguez-García et al., 2015, 2014a). On this occasion, we focus on the sociocultural domain of perceptions, categorisations, and practices related to difference and diversity – or what Gordon (1964: 71) called ‘attitude’ and ‘behavioural receptional assimilation’; this area of investigation looks at the permeability of social boundaries and the absence or weakening of discriminatory practices and attitudes (including perceived discrimination) towards immigrants and minority groups.…”