37 those who enter already developed secondary labor markets. The immigrant enclaves may hasten one aspect of the assimilation process while retarding another. Over the past century, views and value judgments regarding assimilation have changed. Gordon (1964) finds that during the 1800s there was a strong political push for immigrants to take on the perspectives of the dominant culture: white, Anglo- Saxon, Protestant. That movement gave way to the Melting Pot theory which was strong from the 1920s to the 1950s and still persists today (see Arndorfer, 1982). According to that theory, the .S. is made up of a number of immigrant groups who have all contributed cultural characteristics which make the U.S. culture a blend of many different groups. The net effect of the two theories is that the immigrants must change to become like the host culture, the second one being a somewhat modified version of the first in that the host culture is also in the process of changing to become slightly more like that of the immigrants. Many scholars and ethnic leaders have called for the acceptance of cultural pluralism (Dinnerstein, Nichols, & Reimers, 1976; Gordon, 1964; Safa, 1982). Binder (1979) writes that the U.S. is no mythic, multicultural melting pot and does itself no good in expecting or forcing total assimilation. Kessler-Harris and Yans-McLaughlin (1978) find that in the third generation, the immigrant group begins to seek to regain ethnic identity lost by their parents and grandparents in the process of assimilation. Conflict Perspective Portes (1969) was one of the first to point out the fallacy of assuming that immigrants necessarily want to become acculturated to