I don't think it's realistic for Hawaii to try and change how tourism there is accomplished. There are millions of tourists from Japan and China who visit every year, and they tend to come in groups and stay in hotels. Many of those same hotels are owned by Japanese and Chinese companies. I don't see how they can swerve the visiting public away from that and into a timeshare-like vacation. People want instant gratification, daily maid service, hula lessons on the lawn, and fireworks shows on Friday nights.
As to the number of tourists being cut down, again, I think it's a bit late to try and do that. When I lived on Oahu back in the day, they were complaining that at any given time on any given day, even at the highest-occupancy times of the year, there were more than 3000 empty hotel rooms in Waikiki. They were even putting up welfare families in empty hotel rooms because there wasn't enough low rent housing to go around. There are many more hotel rooms now, in much larger hotels. Is the occupancy rate still leaving many empty rooms? Are they going to lock off half the rooms and tell those hotels they can't rent them out? Are they going to reduce occupancy permits? That'd be a fast lawsuit, I'm sure.
It's a ponderous question, since Hawaii serves so many different kinds of tourists. I don't see how they can do it. Raising prices and reducing the number of rental cars will only force more congestion on buses and taxis.
Dave