Don’t be too sure, I live right next to Parker Ranch, the country’s second or third largest privately owned cattle ranch in America. We have lots of cattle, pig, and goat ranches nearby.
Plus good hunting. Wild Goat, sheep, pig, turkey and chickens et al, running everywhere.
There are lots of farms in the area also.
The island bigger than Connecticut and only 200,000 year round residents, nobody will go hungry here.
We are not the Hawaii you see on the TV shows.
Hawaii raises a lot of food but Honolulu and Waikiki are the problem, too many people. Hawaii imports something like 80% of their food.
I think you might be right about Kauai but there Are also a lot of boats in Hawaii and they will probably try to go where.l the food is.