I see... Sp NAFTA protects the corps and throws the unions under the bus.
It all makes sense now.
When contracts are bargained in bad faith there is no need to feel bad about breaking them.
Fact is, the only thing that keeps unions afloat is based on the protection afforded to them via gvt.. Take that away and they are no different than anyone else. With any luck, this recent rash of strikes will see gvt reconsider that protection and remove it without delay.