Final answer:
In the opening scene of the game of NY, nativists, who were anti-immigration, confronted immigrants in Five Points, which led to the enactment of the Chinese Exclusion Act prohibiting Chinese immigrant laborers. This act was part of a broader nativist movement that sought to limit the migration of 'new' immigrants from Central and Southern Europe and Asia.
Step-by-step explanation:
In the game of NY opening scene, nativists square off against the immigrants of Five Points, New York. Nativists are anti-immigration as a result of this pressure and anti-immigration sentiment at the turn of the century, the Chinese Exclusion Act was passed which prohibited the immigration of Chinese laborers.
Nativism at the time was fueled by various socio-economic factors and a desire to protect the interests of those considered 'native' Americans (descendants of early European settlers, primarily of northern European descent) against those who were newly arriving immigrants, particularly from non-Western European countries. Nativists hoped to prevent migration of nonwhites, non-Protestants, Jews, and other "new" immigrants from Central and Southern Europe. Their efforts led to the formation of exclusionary groups such as the Asiatic Exclusion League and the American Protective Association, with the latter playing a significant role in legislative actions like the Chinese Exclusion Act of 1882, the Emergency Quota Act of 1921, and the Immigration Act of 1924.