Which movement was characterized by fears that immigration would take jobs from native-born Americans?

The Americanist/Nativist movement is characterized by a significant concern over immigration and its perceived impact on the job market and social fabric of the nation. This movement emerged in response to waves of immigrants, particularly in the late 19th and early 20th centuries, when many native-born Americans felt threatened by the influx of newcomers who were willing to work for lower wages.

Nativists often argued that immigrants were taking jobs that should rightfully belong to American citizens, leading to widespread feelings of resentment and competition for employment opportunities. This translated into calls for policies that would restrict immigration and promote the interests of "native" Americans over those of immigrants. The movement sought to preserve what its members viewed as the traditional values and culture of the United States, arguing that immigration was undermining these elements.

In contrast, Labor Reform primarily focused on improving the working conditions and rights of laborers, the Progressive movement addressed a wider range of social and political issues, and the Socialist movement advocated for systemic economic changes and the redistribution of wealth, rather than focusing specifically on immigration. Thus, the Americanist/Nativist movement is the most directly connected to the concern over job displacement due to immigration.