Let's take a look at an example from steel labor.
***** In the late 1850s, Pittsburgh-area puddlers - skilled workers who controlled key steps in the ironmaking process - responded to wage cuts by organizing the Sons of Vulcan, which they'd reorganize and attempt to raise to nationwide status as the National Forge in 1862. But the National Forge had just 600 members in 1868, only 3,331 by 1873.
Labor's focus remained on skilled workers for years, leading to the 1876 formation of the Amalgamated Association of Iron and Steel Workers of America. Organized along craft lines, the Amalgamated grew to some 24,000 members before the strike at Homestead, where it had strong community support though it included only about one millworker in five.
The Amalgamated's influence at Homestead was attributable in part to Andrew Carnegie's differences with even more ruthless rivals.
He tolerated small, local unions so long as they didn't seek to influence matters he considered management's alone, link with organizations elsewhere or conduct strikes.
But as Carnegie introduced automated processes that needed only unskilled, mainly immigrant labor, skilled workers' influence with management waned. <http://www.ghplus.com/SteelWorking/steel8.htm> *****
Labor radicals responded to the changes in the organization of production by changing their organizing scope, and the the Steel Workers Organizing Committee introduced industry-wide organizing, leaving behind the focus on skilled workers. Now, in the context of transnational production, industry-wide organizng of necessity demands internationalism. The mode of organizing either responds to changes in production and transforms itself, or else it is doomed to frustration.
Yoshie