The laws under which unions are organized have a huge influence on their effectiveness, and American unions are consequently... not that great.
The United Auto Workers partially funded the Port Huron Statement authored by Students for a Democratic Society, a generally socialist group. Now, it's entirely plausible that the UAW leadership wanted to have some modicum of influence, and that's why they loaned them an entire union retreat on Lake Huron. But I doubt that the average UAW factory worker was excited to see their union dues used to provide elite college students with a mostly-free vacation for political organizing.
I am not a labor law expert by any means, but my understanding of, say, German labor law is that it's much better at actually representing the workers in a given factory, in part because a union that doesn't do that loses its members to ones that will (since there's no requirement that everyone in a given job class has to join the same union).
The United Auto Workers partially funded the Port Huron Statement authored by Students for a Democratic Society, a generally socialist group. Now, it's entirely plausible that the UAW leadership wanted to have some modicum of influence, and that's why they loaned them an entire union retreat on Lake Huron. But I doubt that the average UAW factory worker was excited to see their union dues used to provide elite college students with a mostly-free vacation for political organizing.
I am not a labor law expert by any means, but my understanding of, say, German labor law is that it's much better at actually representing the workers in a given factory, in part because a union that doesn't do that loses its members to ones that will (since there's no requirement that everyone in a given job class has to join the same union).