Final answer:
Unions were seen as un-American due to a combination of mistrust by business owners, cultural preferences for individualism, and legal obstacles. Key movements like the American Plan significantly influenced public perception, equating unionism with foreign ideologies. Laws such as the Taft-Hartley Act further shaped the legal climate against unions.
Step-by-step explanation:
Why were unions seen as un-American? Throughout American history, especially in the early 20th century, unions were often viewed with skepticism and branded as contrary to American values such as individual freedom, self-reliance, and the promise of upward mobility through hard work. Business owners and many in the general public mistrusted organization efforts and aligned them with radicalism and un-American sentiments, partly due to cultural differences and the influence of the American Plan which sought to discourage union membership by portraying it as un-American. This belief in self-reliance was also fueled by America's unique history of independent family farming, reinforcing the individual over collective action.
In addition to cultural factors, legal barriers also played a role in the perception of unions as un-American. Laws like the Taft-Hartley Act of 1947 allowed workers to opt out of unions and created a less friendly legal environment for their formation, leading to a decline in union membership. Moreover, the violence that erupted during labor movements and the association of union efforts with Socialism and radical European movements led to a further negative perception of unions in America.