Personally I think this is more about the 70's argument about flushing the pollution out of the SF bay. I think the smelt argument is just a means to fulfill that liberal dream. After all those liberals deserve a clean bay, right?
(but we do get all the SF smog as it flows down the valley, then the Air pollution people blame us for it as it pools at the valley end.)
You don’t eat a smelt, you fry up a bucket of them and then dig in...good eating, easy to gut...the smaller ones you can even eat the tail....