Kev1962 saidYes, the longshoreman/stevedoring outfits stepped on their dicks on this work slow down in their negotiations for their union and other contracts. 80% loss of shipping if this really is a move by the shippers and not just a maneuvering tactic(?).
I would suspect it was actually spurred by economic realities. It's not profitable to have docks closed, or to redirect ships. It's like planes, they need to be here and then there. Unpredictability is not okay.
Having said that, there COULD be something nefarious going on, if even an unspoken understanding. But I have heard no evidence of that one way or another.
The bottom line is that it's about money, not emotions. It's a simple matter of time down, capacity and dock capacity. If there's money to be made, which there is, the shipping will come back. It's not as zero/sum as people imagine. Going to a less occupied but properly staffed dock is ideal. The market will resolve this matter. Nobody but a fool runs from money.