Reply #16: You know the answer. [View All]

[I work for workers]

It's because the union wants the job. Workers rights are the political goal of the labor movement. Keeping members working is the practical day to day goal. To do that, unions need contract and they need membership. Non-union labor robs them of both those things, and so labor demonstrates against non-union sites.

The rat is just for show, morale boosting and to keep unemployed members busy. The real reason the trades can keep getting contracts is that they have the educational and legal infrastructure to build quality projects on time and budget.