If sport fishing is even a meaningful part of the problem (which I doubt), why are the drainages that get hammered THE MOST by guiding the only ones forecast to make escapement? Doesn't seem like anglers are largely responsible to me, but it does seem like extinction is inevitable at this point, so why not just let us flail away to the bitter end?

Option 5: Let us fish until they're gone. I guarantee it won't be a C&R encounter that kills the last one, no matter what they decide. A gillnet, a cormorant, or a "blob" is FAR more likely to deal that blow.