You missed my point. I'm saying you guys _should_ justify your claim through an appeal to the real & objective interest of the working class in general (not this or that segment of working-class individuals), not through an empiricist appeal to what some workers -- even the majority of workers -- happen to be thinking at this moment.
Is it in the objective interest of the working class to include organized prison guards among the ranks of organized labor? I think not. The sectoral interest of prison guards' union is to continue the war on crime (so their jobs will be secure), which is not in the interest of the working class. (See my excerpt from Mike Davis's _Ecology of Fear: Los Angeles and the Imagination of Disaster_, NY: Metropolitan Books, 1998).
Yoshie