Have you ever read any stock assessment studies done by state and federal fisheries biologists?
Pay close attention to the "Limiting factors for recovery" section, there's where the scientists list, in order of severity, the factors that limit stock recovery.
In dozens of West slope and coast range studies the factors are almost always the same.

1. Water quality (elevated summer temps.)

2. Lack of stream complexity.

3. No large woody debris recruitment.

4. No over wintering back channel/alcove habitat.

5. Poor estuary habitat.


You won't find over harvest, or poor stock genetics as limiting factors for recovery, so scientifically speaking you are incorrect.