Thanks for this. It is quite the crazy situation. A few relevant anecdotes:
The squid you mention that is imported is - heaping on more irony in the caught here exported imported exported cycle - mostly for bait. Walking on the beach near my home in Oregon recently, I found among the human-created jetsam an intact label from a 10 kilo package of whole Humboldt squid (Dosidicus gigas), "ocean run" size. Origin: Ecuador. Imported by Seafood Doctor, Inc., a company located far inland, in the Rogue valley.
There are other, lesser known complications to the whole business as well. On the Pacific coast, this year's commercial crab season had delays in opening, and then storms keeping everyone in port most of the first couple weeks. Not that unusual. But adding to that, the commercial buyers were not much interested in buying. A main reason they gave: all the available freezer space was packed full of chicken and pork! This affected last summer's tuna season as well - fisherman could fish, but had too few opportunities to sell their catch in quantity.
My maternal grandfather was an independent commercial fisherman most of his working life in this country. When he was in his prime, long but yet not that long ago, most of the fishery on the Pacific coast was independent small boat operators, and those who worked reasonably hard could make a decent living at it. Ever fewer independent regional fishermen survive, as their livelihood has been globalized and outsourced, with all the consequences you describe and more. Most of them must also work other jobs to make ends meet. Much like small farmers - no surprise there.