Miami resident here. Lots of things to call out.
>This isn’t an inequality or poverty issue, it’s a drug issue.
That might be true of other locales, such as LA or SF. However, Miami at its core is a haven for Latin American robber barons and money laundering - and the real estate dollars follow that.
While yes, there are definitely some homeless who are on drugs (shoutout to the crack addict who spends his life walking around the city block I happen to live next to), it's mainly people who have been priced out over time. Miami is exorbitantly expensive and there is no middle-class housing to speak of (let alone lower-class housing) if you want to live anywhere near the city or the main areas of sustained economic activity (which is to say nothing of the horrible state of public transit and urban sprawl). I've been there 7 years now and I've seen a flood of high-rise "luxury" developments with $3-4k-a-month studios being built in formerly middle-to-lower-class areas, and that's to say nothing of the flurry of insanely expensive highrises that sit at like 40-50% occupancy at best, bought up by people (read: money launderers) that will never step foot in the USA, much less rent out their places.
>I do not blame the good city of Miami for wanting to just ship off the homeless to a remote island where they can be out of sight and out of mind.
Thing is though that Key Biscayne isn't a remote island. The park where they are building this is less than a 3 mile walk to the heart of Brickell. I've walked that exact route before and it takes no time at all. It's literally past a school, over a bridge, and you're right in Brickell. This park literally hosted Ultra Music Festival a few years ago, and is very easy to access. If you live or work in Key Biscayne, you pass this park every day. It's not remote.
> The city depends heavily on tourism and has an image of copious wealth to uphold.
The homeless don't really factor in here. The areas with a lot of wealth are nowhere near the main homeless areas. The tourist areas are mainly concentrated around Miami Beach, which is a city in it's own right and is not controlled by the City of Miami.
The homeless areas are predominantly in the Haitian & African-American enclaves like Overtown and Little Haiti. Nobody who is in Miami for tourism goes even close to those areas.