The Chinese Exclusion Act of 1882 was strongly supported by labor unions and working-class Americans, particularly those in the western United States. These groups believed that Chinese immigrants were taking jobs away from American workers and driving down wages. The act was the first significant law restricting immigration into the United States and specifically targeted Chinese laborers.
Labor unions, such as the Knights of Labor, played a significant role in advocating for the exclusion of Chinese workers. They argued that the influx of Chinese laborers created unfair competition and undermined the labor market. Many working-class Americans also supported the act due to economic fears and racial prejudices.
The Chinese Exclusion Act was a reflection of the broader anti-Chinese sentiment prevalent at the time. It was not until 1943 that the act was repealed, allowing Chinese immigrants to become naturalized citizens.