I spend almost half the year in Hawaii. Unfortunately most of it on Oahu. Hawaii spoils the homeless and more and more keep arriving from the mainland. There are showers and toilets at almost all beaches. The homeless make elaborate villages in abondoned lots and fields. The streets of Honolulu are lined with tents and stolen shopping carts. Many are homeless by choice thought you won’t ever hear their advocates admit it. Many are young wannabe new age hippies that are just layabouts who want to live on a tropical island. There are a lot of the ice heads and drunks but not as many as a place like Los Angeles.
I hear you, it's very sad to see. The city and state governments need to make things much tougher on the ever-growing vagrant population, especially out-of-staters, or their number one industry (tourism) is going to take a major hit.