Tourism in Hawai'i is a long term problem. Yes, it's our largest industry, but hey that didn't happen by magic. For the majority of the past century there has been a concerted effort to promote tourism in Hawai'i; that's why it's our largest industry. Other economic sectors--notably ag---have been left behind and ignored. 

We could start to change this. Step one is making tourism more tolerable.

Lets levy major taxes on rental cars. While I don't know of any studies, anecdotally tourist cause massive amounts of traffic and are likely accountable for a large number of accidents. This economic cost is needs to be borne by them. 

Lets prevent tour companies from operating in residential areas. 

Lets crack down on AirBnBs. 

The tens of millions we spend on promoting tourism to Hawai'i via HTA is a questionable investment. Granted, it must have some impact. But it is most certainly experiencing diminishing returns. Lets redirect it to investing in industries locals actually want.