From the beginning unions have leaned leftward. Marx saw unions as schools for socialism, and a means to break down private property. Unions have been on a suicide mission, fighting the very means by which they could thrive.
If unions are to survive they have to divorce the Left and leave politics behind altogether. Only in cooperation with maqnagement can private sector unions survive and thrive. This calls for innovation on the part of unions to attract a new kind of skilled, intelligent worker. The blue collar, lunch pail days are over. Unions can offer companies solutions, cooperative plans that will help the company thrive in the global economy. In order to do this, unions will have to change their attitudes, substitute economic means for political means, and separate from any connections to socialism. Socialists have never understood the business world and what's necessary to succeed. Especially in a hi-tech global economy workers have to cooperate and innovate with management, and vice versa, in order to efficiently compete.
If workers and management can agree that wage increase is not the primary goal, but finding an acceptable difference between bring-home pay and living costs, then deflation might become necessary to bring manufacturing back to the US. It's all the old ideas that unions have carried from their past that have broken the unions, not management.