Define "Nativism" in the context of American history.

Nativism, in the context of American history, refers to the policy or belief system that favors native-born inhabitants over immigrants. This sentiment emerged particularly strongly during periods of significant immigration, such as the mid-19th century and the early 20th century, when newcomers from Europe, Asia, and elsewhere faced considerable resistance from those who identified as native-born Americans. Nativists often argued that immigrants threatened cultural values, jobs, and social stability, and they sought to promote legislation and social attitudes that would restrict immigration or limit the rights of immigrants. This ideological stance has influenced various aspects of American policy and social dynamics throughout history, shaping debates over immigration and national identity.