Social Darwinism was most likely applied to treat immigrants from different regions differently, however, Social Darwinism does not specifically relate to immigrants but also to all members of society. In the American context, the notion was implemented to popularize the notion of "survival of the fittest" or that the strongest members of a society will succeed and the political system should support this theory.
Social Darwinism was the doctrine used to justify unequal treatment of immigrants during the late 19th and early 20th centuries, promoting the idea that some races were more evolved and hence superior, which led to restrictive immigration policies against Asian and other non-European peoples. ;
The doctrine that justified treating immigrants differently during the late 19th century and early 20th century was Social Darwinism. This theory suggested that social success was linked to biological superiority, leading to discrimination against certain immigrant groups. Influenced by this ideology, U.S. immigration policies were shaped to favor some ethnicities over others.
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