Give workers a choice and the unions will lose. Look at Wisconsin where Governor Walker fought to end public employers collecting union dues directly from workers paychecks. When the rank and file workers have to write a check for their union dues they quickly soured on the benefits of having a union. Unions also hate right to work laws as they cannot force workers into joining a union.
How Hitler Consolidated Power in Germany
and Launched A Social Revolution
The First Years of the Third Reich
Even before Hitler won Reichstag backing for his “Enabling Act,” Germany’s giant labor union federation, the ADGB, had begun to rally to the National Socialist cause. As historian Joachim Fest acknowledged: “On March 20, the labor federation’s executive committee addressed a kind of declaration of loyalty to Hitler.” (J. Fest, Hitler, p. 413.)
Hitler than took a bold and clever step. The unions had always clamored to have the First of May recognized as a worker’s holiday, but the Weimar Republic had never acceded to their request. Hitler, never missing an opportunity, grasped this one with both hands. He did more than grant this reasonable demand: he proclaimed the First of May a national holiday.
Just as the Socialist party had gone from a vote in the Reichstag against Hitler (March 23, 1933) to a vote of support (May 17, 1933), so did the union leaders make a 180-degree turn within weeks. At one stroke, Hitler granted to the union what they had vainly asked of every previous government: a holiday celebrated by the entire nation. He announced that in order to honor Labor, he would organize the biggest meeting in Germany’s history on the First of May at Tempelhof airfield in Berlin. Caught unprepared, but on the whole very pleased to take advantage of the situation by throwing in their lot with National Socialism and, what is more, to take part in a mass demonstration the like of which even Marxist workers could scarcely imagine, the union leadership called upon their leftist rank and file to join, with banners flying, the mass meetings held that May Day across Germany, and to acclaim Hitler.
http://www.ihr.org/jhr/v12/v12p299_Degrelle.html