First a observation from me who lives on Puget Sound. In my 60 years I have never seen so many California Sealions. When I was young if you looked you would see a head above water or one sunning himself on a bouy. But now very common, and any large bouy has several sunning.
The two possible suspects. Fishermen both Indian and non Indian who complain about the competition. But the more likely suspect is the SAVE THE ORCA activist, with the very liberal Seattle news media almost daily running stories about the dwindling population of the two main resident Orca Pods - which they claim is the lack of salmon. Which is BS too, as they just two years ago had record numbers at the fish counter going through the Locks into Lake Washiington.