Irish and Italian Americans came to be considered members of the white race as their assimilation provided them with the material resources that allowed them to move away from the menial labor that was seen as synonymous with being black. Occupational and class mobility along with the loss of ethnic identity allowed these groups to assert what they were; phenotypically white immigrants from Europe who had been denied the ability to claim that identity because of racialized ethnocentrism. Today, Asian and Latino Americans who are light-skinned and have high economic status, particularly those who have white partners, may also gain entry into the white race. Those who marry whites are almost assured that their offspring will be accepted as white.
Charles A. Gallagher, “In-Between Racial Status, Mobility and Promise of Assimilation: Irish, Italians Yesterday, Latinos and Asians Today,” in Multiracial Americans and Social Class: The Influence of Social Class on Racial Identity, edited by Kathleen Odell Korgen, 20. London and New York: Routledge, 2010.