Union membership declined in the 1920s due to various factors, including immigration, societal attitudes, and legal changes.
Union membership declined during the 1920s for various reasons. The influx of immigrants with language barriers, reluctance of farmers and African Americans to join unions, and exclusionary practices by unions all contributed to this decline. Additionally, changes in laws, like the Taft-Hartley Act of 1947, made it more challenging for unions to organize workers.
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