Cultural Differences: Many Americans felt that immigrants brought with them foreign customs, languages, and religions that were incompatible with American culture and values. They worried about the potential dilution of their own identity and the erosion of traditional American ways of life.
Social Tensions: The influx of new immigrants led to increased social and cultural diversity, which can sometimes create tensions and conflicts between different groups. Some Americans felt uncomfortable or threatened by this growing heterogeneity and believed that it was harder to maintain cohesion and unity within society.
Nativism and Racism: Some Americans held nativist and racist views that regarded certain ethnic or racial groups as inferior. These prejudices were rooted in historical stereotypes, biases, and fears about the changing demographics of the country.
Lack of Integration: If immigrants did not assimilate or integrate into American society, this could lead to a sense of separation and resentment. Some Americans may have felt that immigrants were not making enough effort to learn the language, adapt to local customs, or contribute positively to the community.