Final answer:
The rise of labor unions in the United States can be attributed to poor working conditions, immigration, and changing attitudes. Labor unions were effective in advocating for better conditions for workers, but also faced setbacks and negative publicity.
Step-by-step explanation:
The rise of labor unions in the United States can be attributed to several factors. One contributing factor was the poor working conditions experienced by many industrial workers, which led to frustration and a desire for change. Another factor was the influx of immigrants, who faced language barriers and were often willing to work in poor conditions due to their dire circumstances. Additionally, the decline in the need for unskilled labor and changing attitudes towards unions and immigration also played a role in the decline of the labor movement.
Labor unions were effective in improving conditions for workers to some extent. They advocated for better wages, work hour regulations, workplace safety, and an end to child labor. Through political advocacy and owner engagement, labor unions made some gains for workers, especially during the Progressive Era and the Franklin Roosevelt administration. However, they also faced setbacks and negative publicity, and many American laborers remained unrepresented by any collective or union.