If you ask Republicans about their antipathy toward unions, they'll say that letting workers bargain collectively reduces a company's ability to act efficiently in the marketplace. If you knew anything about business, the market advocates will patiently explain, you'd understand that unions, with all their rules and conditions and strike threats, only make it harder for the company to make its products. Let management make decisions about things like wages and working conditions, and the result will be higher profits and more jobs, which will benefit everyone. In almost all cases, the corporation agrees; after all, union workers always earn better wages than their non-union counterparts, and they give power to the employees, which no CEO wants.
What most people probably don't realize is that this inherently hostile relationship between management and unions isn't something that's inherent in capitalism. In fact, in many places where there are capitalists making lots of money, corporations work—now hold on here while I blow your mind—cooperatively with unions. One of those places is Germany, and one of the biggest German companies, Volkswagen, is right now embroiled in a union election in Tennessee that has turned into a bizarre spectacle that is showing the true colors of American conservatism. If you thought conservative were just laissez faire capitalists, seeking freedom for businesses to create prosperity, you're dead wrong. What they actually want is something much uglier.