If you spent as much time in Hawaii as I did and saw just how depressed the the economy was due to a lack of sugar jobs you'd understand. Those jobs, which were present in the years prior to the 1990s, were high paying jobs which a person could support a family on. Now the only jobs one can look forward to is low-wage travel jobs. The same can be said for the pineapple industry. I don't think there is any commercial pineapple canning jobs in Hawaii anymore due to our failed trade policies.
That argument doesn't wash. To avoid pain in Hawaii, you'd rather inflict pain on the United States.
How many displaced American sugar workers would there be? 10 or 12? Saving those jobs is worth $2.5 billion a year? Is that the new math you're using?