A good representation of the people I found were Native Alaskans, immigrants, or felons who were attracted to the job because it was one of the damn few available to them. It was brutal work to eke out a basic existence.
Not sure about the natives. Their way of life was wrecked by western influence and fishing even on a modern vessel is about the closest thing they have to continuing their way of life while making some income near their home. I have no idea what they would shift to if they moved.
In any case USA's highly regulated Bering Sea fishing industry is shared with Russia. Even if we eliminated/downsized our fishing it'd have to be done in concert with Russia to get the desired outcome, otherwise we'd just be handing the lions share of our catch to Russian fisherman.
At the expense of *most* of its citizens. I know people who make a shocking amount of money fishing in Alaska every summer. The problem with the US is that it always prioritizes a few of its citizens getting rich, to the diffuse and often intangible detriment of the rest of us.